I have been with my boyfriend for 7 months now I love him so much and I know he feels the same he always says he loves Me and gives me compliments every day. We used to have sex like 2/3 times a week now its once every 2 weeks, he sometimes jokes around and says I'm getting fat and he says I'm going on a diet but he jokes its just make a me wonder if that's the reason I have put on a little bit of weight but for my age I'm only 18 I'm not fat, he talks about sex with me but every time I make a move he says not tonight his tired.
Is it because maybe I have put on weight?