I've been with my partner three years and we see each other every weekend where I stay at his house from Friday evening until Sunday afternoon. The problem is as soon as I get there he wants to have sex. I can say no, maybe later, take his hands off me etc, but I end up just letting him in the end, so he leaves me alone. If I don't he does tend to sulk a bit and will just try later on until we have had sex (this happens all three days i'm there). The thing is I love sex, but now the pestering is actually putting me off. I sometimes pretend i'm asleep and eventually he leaves me alone. This even happens when i'm on my period. He seems to think if I don't have sex with him then I don't find him attractive anymore, when the reality is sometimes i'm just tired and don't want.