So sitting watching something on TV with my DP of 2 years last night and he randomly commented on something which lead to the question "Have you had a bigger penis than mine".. I said I refuse to answer because it's not something I want to discuss.. he gets pissed off.. then asks me how many guys I've slept with again i refuse to answer as I don't want to talk about it with him and it's not relevant to our relationship.. now he's left saying that if I can kept stuff from him and cant be honest then we shouldn't be together..
AIBU to not want to discuss this?