ADHD could certainly be a possible explanation for his behavior. But it doesn't matter. But if you do not trust him and felt uncomfortable during those scenes, it doesn't matter what his excuse is. Your wellbeing is important and shouldn't be compromised. I have ADHD and have done some dumb shit but that doesn't give me or anyone for that matter an excuse to keep pulling that same dumb shit. If I was in this situation, I would make it known to the Dom that he has to regain my trust before I do any vulnerable scenes with him, private or public. If you do not set these firm boundaries I don't believe you can move on from this, if you still want to do anything with him at all. I wouldn't. But I don't know your relationship.