My T, who I've worked with for six years, missed an obvious body modification I had done. Like, it's on my face dude. Seriously, one day I was in session and he was like, "Oh, hey, you got X done" and I was like, "I've had it for a month. I pointed it out to you when I got it."

No, it's not as serious as CSA by any stretch of the imagination. What I'm trying to point out is that the human brain is super weird. He may have been trying to find a reason why he forgot because rarely do we ever like to admit that our brain failed us in such a serious manner.

He screwed up and he screwed up badly and he knows it. The thing is, in any long term relationship, people are going to eff up. This is the perfect opportunity to work through it. You may want him to ask you about it, and he doesn't know that. If you trust him, if you want to talk about it, you're going to have to take lead. I think you can decide how much of a rupture this is. Grace for yourself and grace for him too - and a new step in the right direction of not cutting people out when they fail you because in the end, everyone is going to trip up - some worse than others.