I hit my girlfriend, and I don't know how to make it up to her?

Anonymous
So she started pushing me pretty hard and screaming at me before anything happened. I walked away and she was still pushing me real hard as I'm walking away. I let her calm down, came back up to the apartment, and she pushed me even harder against the window and it really sprained my thumb by pushing it back. It's on a slit right now. Being a combat veteran with PTSD and a trained fighter, something snapped... and I punched her in the face twice really hard and very fast, and she hit the floor. She was still fighting me so I held her down by the neck and when she tried to keep hitting me I kicked her in head.

I'm not trying to avoid responsibility by saying this, but something snapped and I felt like it wasn't even me. I felt like I was on deployment again, and just responded the way I was trained to when I'm being physically threatened and hurt. The thing about combat is that you say you'll do this and that, but when it actually happens, you rely on muscle memory. I finally snapped out of it, and saw her crying and she was saying she forgave me before she even apologized.

I saw the bruises and I immediately broke down and just started crying and apologizing. I felt so dirty and wrong, and couldn't believe what I had just done. I'm supposed to protect her, not hurt her. She's scared that I could possibly kill her if she ever got me to that point again. I feel so shameful and I can't even sleep. I know she looks at me differently. I've been holding her non-stop and being as gentle as I can.

I just don't know what do or how or if I can fix this. She forgives me and keeps saying it, but I know she's looking at me differently. I know I'm wrong. I feel out of control. I planned a therapy appointment for myself to work on this.
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+1 y
Before I* even apologized.
I hit my girlfriend, and I don't know how to make it up to her?
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