I have lived with my boyfriend for 10 months now and our sex life has never been fantastic. He says he can't orgasm more than once a day, so we don't have sex for a long time because when i'm not in the house and he wants sex, he will wank. Most of the time he says "Sorry darling can't do it, i've already done it today" or half way through sex he says "I cant do it, I did it a few days ago." Turning him on is easy, but every time we have sex it's a marathon and he starts sweating and then he gets tired and can't orgasm at the end. He is young and fit and meant to be in his prime. I've tried to spice things up and experiment but nothing helps. It's really getting me down and I feel i'm not sexy enough for him but when I try and ask him he says it's not me it's him. Is there something wrong with him?