Possibly a little tmi. About sex

So last night my boyfriend and I wanted to have sex. So we’re laying in bed and the foreplay is going strong. Well he gets a little rough with his fingers so I told him to slow down because it hurt and he freaking said something about how its made for a baby to come out of there. AND I SWEAR it’s like my vagina snapped shut😅 I literally couldn’t keep going I was instantly dry and just kept saying “why would you say something like that right now?!” Well he got mad at me for not being able to continue because he said something that completely turned me off. The one place I don’t want to be reminded that I’ve got to push a watermelon out of a lemon hole is in the bedroom. Its not sexy🤷🏻‍♀️ and I just wanted to feel sexy for a little while.