I'm new to this and I apologizing in advance for the ridiculously long post. A few weeks ago I met an amazingly sweet man on a dating site. On paper he's just about everything I could ask for. After talking a bit he told me he was a Marine MP for 9 years and planned on retiring but had to get out in 2006 due to a non-combat related injury. We were talking about hobbies and I asked if he liked going to the shooting range because it's something I'd like to try. That led way to him telling me he wasn't allowed to own a gun because when he got back from Iraq he was suicidal and placed on a 24 hr hold in an institution but he said he was fine now. This did send up red flags but it didn't send me running for the hills. He was so open and honest and different from any man I had ever met and I over analyze just about everything but I didn't feel the need to do that with him because he never left me guessing at what he was thinking. He did have some obvious self-esteem issues that in my opinion were completely unwarranted. We made plans to meet. I ended up being 5 minutes late which I told him I would be but in that time he left before I got there and sent me a text saying I was too late. When I finally got him to explain what happened he said the longer he waited he lost his nerve, and already feeling like I was out of his league decided to save himself from rejection and take off. He spent the next 2 days apologizing and I spent that time telling him he had nothing to worry about because I found him attractive and I liked him already. We decided to give it another try and although it was a little awkward due to us both having not dated for a while, we had a good time. We talked via text all day everyday since the day he found me on the dating site and would occasionally talk on the phone at night before he went to bed so feelings got involved very rapidly and he made it clear that he wanted the relationship to move rather quickly which scared me a little but ultimately I was feeling all the same things so I was okay with. He would talk about the future and what he wanted out of this all before our second date. Then I started to see the cracks! He had a day mode and a night mode. By day, I got a very sweet, caring, funny, sensitive, positive, and engaged person. At night (not always but mostly) I got a distant, cold, quite, sullen person. I would get text messages some nights before he'd go to bed saying to find someone else, he didn't want to date after all, he's not the man for me, he has to say goodbye forever. I would immediately panic when he would do this and plead with him to give it chance. I would spill my guts out to him and let him know he didn't need to be scared because I wouldn't hurt him. I did this because I really thought there was a possibility that he could be THE ONE for me and I sensed he felt the same and I wasn't gonna let that go without a fight. I wouldn't hear anything from him for the rest of the night and in the morning he would apologize and say he doesn't know why he does that and he's messed up in the head. We would spend those days with me trying to help him sort out his feelings. It always came back to him wanting to make us work. We made plans to go to the movie of his choosing, a WWII movie. I was apprehensive about it already thinking that he maybe be suffering from PTSD but he was very insistent that he would be okay because it was WWII and not anything current. We met before the movie and talked in his car for a couple hours. He asked me if I notice the day/night mode he seems to have and I told him I did. He said when he was with me (we only saw eachother at night) he didn't seem to have a night mode and everything was okay as long as I was physically with him, and the depression that normally crept in on him seemed to stay away. He also admitted to trying to sabotage the good things in life. When we got in the theater everything was fine. 30 minutes into the movie there was a drastic change. He let go of my hand, started fidgeting and moving around in his seat, bouncing his foot and just seeming overall agitated. I asked him just once, not wanting it to seem like I was babying him, if he was okay and he assured me he was. He said he was gonna go buy a drink and he'd be right back. He never came back! I knew in my gut he was leaving but I kept telling myself I was wrong because I didn't want to seem needy. I left the theater and got to my car to see his car was gone. I wasn't mad, I was worried. After various attempts to get ahold of him and find out if he was okay I started doing some research on PTSD because I was certain now that's what he was dealing with. He's a textbook case of combat PTSD! Everything peculiar about him now screamed it to me. I went to bed praying to hear from him in the morning. I did. He was embarrassed and apologized and I could tell he was depressed. I apologized for not trusting my gut and going after him or leaving with him and he said it was better that I didn't because he was really messed up. We continued to talk a little about some of his hang ups but I didn't want to make him uncomfortable or seem pushy on the topic. We had some more hiccups with him trying to cut off the relationship at night, me pleading for him not to do this and in the mornings things would go back to normal. We talked more about the future and he brought up the idea of us moving in together when our leases were up. I was scared of that but he seemed so sure that I was the person for him so I fought the urge to pump the breaks and went with it. We made plans for me to go out to see him (he lives by the beach, an hour and a half from me) and spend the day doing beachy stuff. As I'm getting ready I get a message from him saying to not come out he doesn't want to date anymore until he gets his own place. I got him to talk about some of what he was feeling or fearing. This took about 2 hours to sort it all out and by the end he was back to the jovial guy I was now having deep feelings for. I went out there and everything was amazing! Look up perfect date in the dictionary and that's what it was. Dinner, a long walk on the pier, cuddling on the beach, playing on a swing set, fro-yo! He talked more about the future and other things we could do if I came out the following weekend. He made a joke about finding a nice hotel we could go to, to be alone (we hadn't had sex yet, partially due to the fact both of us rent rooms in other peoples homes.) I told him I wasn't opposed to the idea but definitely not that night and he seemed to be okay with that. We talked some more about some of his issues and how he can't get out of his head and just live life. He took me back to my car and gave me the best goodnight kiss of my life. He told me to let him know when I got home and we parted ways. I let him know I was home via text and he responded by saying he didn't want to continue our relationship an further. In the 90 minutes it took me to get home after a date for the record book he decided he didn't want me anymore. I didn't plead with him this time because I was starting to get used to this night mode thing and figured things would be okay in the morning and I just asked him for a reason. I got nothing. Hoping in the light of day he would realize his mistake as he had so many other times I went to bed. I woke up and didn't have any messages from him so I texted him saying I didn't understand. He responded saying that no one understands. I plead with him to give me a reason which didn't work and all of his responses were cold and short. I find it ironic that part of the reason I like him so much is the lack of uncertainty and the vagueness I've gotten from men throughout my dating history, and now I have no clue why he's doing this! I told him I understand better than he thinks I do and I know that he wants this to work because when we are together physically things are PERFECT! When we part ways he gets so wrapped up in the negative thoughts and the doom and gloom and he shuts me out. I laid everything I was feeling about him and us out on the line so he would know I'm not going to let him walk away from this and I will be there for him. It's been 24 hours and I haven't had any communication from him. I'm worried that he really is resolute in his decision this time and I'm feeling hopeless and heartbroken. The worst part is he won't give me a reason! Am I crazy for wanting this to work? Is this his PTSD talking? How do I handle this? How do I get over him without any closure if this is it? Is there anything I can do to get through to him like I've been able to do before? Should I back off? Help! Please! I feel like the possible love of my life is drifting farther and farther away!