I feel like I have hit a wall in our relationship and have been replaced with a PC game, Reddit and his...
I wish you the very best. Seek out help via forum's like this. If you have a decent VA around, they may offer counselling group/couple/individual. Be honest with your health care providers when you are asked if you feel safe at home.
My ex (sorry, know that is not what you want to hear) would disappear into video games for weekends at a time. I got blamed for my increased gym and work hours.
I also have suffered from PTSD for 16+ years, but am considered medically managed -- I am under the care of good physicians and admit I have trouble keeping my PTSD symptoms under control at time. As military/federal we have additional resources and are protected by law against losing our employment when we self identify a disability like PTSD. It took me years to self-identify my PTSD as I viewed it as a personal inability to perform my job.
When my home situation became violent (toward me), I isolated and made lots of excuses to friends/family for years. When the violence spread to one of the kids, I left. I had some very scary nights with police intervention. Also, some civilian police can provide great support referrals -- safe houses or just a 24 hr number to call.
There are lots of great therapies available, but the first step is for the person in need of PTSD help to recognize that he/she needs help. And is not a failure as a spouse or employee.
Sometimes, the spouse or significant other is not the best option to help your loved one with unmanaged PTSD. Perhaps a fellow combat veteran may provide some outlet in a social environment. The American Legion was a great resource for us when we were stationed in TX.
I realize now that when I was restationed to FL, that the American Legion was replaced by local beach bars that did not help either of our PTSD management.
Of course, the constant separations and different duty stations were tough as well.
I wish you the very best and send thoughts and prayers your way. Stay safe and connected.