Sex is awful

Jessica

Ok so this morning me and my partner was having sex, yeah all he does is literally lie on top when he is 16stone and I'm 11 stone, so we was having sex and was going on for ages! I ended up having cramp in my thigh and got a bit much on my ribs with him lying on top so I said I need to get up (because of the cramp) and he literally got up and got dressed and left without hardly saying anything! I've since messaged him and he said I made him feel so small and hes pissed off with me and don't talk to him! I honestly feel like I'm back with my ex with the "dont talk to me" crap!! Any help on what to do or say to the little cuntcrumpet?!?!