DP has always said that he would stop if he was doing something sex-wise that I didn't like, and this is generally true. However, he doesn't seem to realise that it's just as important with playfighting. A few times now, he has got carried away playfighting (wrestling, tickling, biting) and not stopped despite me yelling at him. He only stops when I burst into tears out of frustration. But then he feels so bad afterwards that it really casts a shadow, sometimes for days, and I end up being the one feeling guilty. Recently he criticised me for 'having a go' about it, I think he felt I was overreacting, even though I tried to explain patiently that he probably didn't realise his own strength, etc. It feels like I am being 'punished' for saying something.
It really bothered me for a couple of weeks afterwards, and brought back the anxiety I suffer from sometimes. I also wondered a bit whether it was my fault, as I have let him know that I quite like him to take control in sex, although I NEVER say no when I don't mean it, so I don't see the need for a safe word or anything.
He always says it won't happen again, but sooner or later it does. He is very lovely in all other ways.