I'm so confused.. My childhood guy best friend recently came to visit me for 9 days. He was Iraq and is diagnosed with TBI and PTSD. We talk everyday and all day for the past 6 years. I've helped him with relationships with girls etc. when he came to visit he played his video games the majority of the time. We didn't talk much except when making plans to do stuff. The first two nights he cuddled with me in bed then two nights after that he pursued me and we had sex. I found out he's been lying to me about being back with his exgirlfriend. He also left several days before he planned to leave. Why is he acting like this? We've always shared everything so him lying to me really hurts especially when I helped him with his relationship with this girl. Why would he be so distant when it's the second time I've hung out with him in person since we were kids? I haven't reached out to him since yesterday because he seems to be pushing me away so I don't want to bother him. Please help