Hey, we always thing the ones we love won't hurt us. But that really is an unreal expectation because things hurt when you are close to people. Just try to remember he did not do this to hurt you. Hell, he didn't even do this to you, he did it to himself because he is hurting and scared and probably didn't know what else to do. Again, easier said than done I know.
In fact this morning, I went on a little rant in my head about something that I thought I had let go of. This was the last piece I hope. Just scream and get it out there and ask God or the universe to release you of it.
If you focus on the past, you ruin the future. You can only live for today.