Spouse thinks this is normal..

Spouse & I have a daughter together. They often play as I'm not that great at imagination play. However, they were playing where she was on his lap & had a blanket covered over her whole body (was pretending to hatch). As soon as I come into the room, I said put a pillow on his lap (the shorts he was wearing were very thin) and he gets annoyed then pissed off. Causing an argument about it, then saying just because I was sexually assaulted doesnt mean he would do that. Just his whole actions about that topic are careless & I'm dismissed about me wanting to show awareness of it. Anyway, was I really on the wrong thinking that kind of play isn't normal? To me just seems weird to play that way & his response about it just validates my actions.