my fiance has not wanted to have sex for over a year, he says its him not me although he can manage masterbation,. he has an app with a therapist in few weeks. in between all that though i have seen dried semen stains on his underwear when he has been out with the boys, he has his mobile on silent and leaves in wardrobe or takes with him and i found a viagra in his wallet, he said he had it for ages and took it out, again on boys night out to sell it. my head is bursting as i need to know the truth, do you think he is having an affair, all his friends muck around so i cant even ask them. he has kept ex girl friends numbers on his phone and they occassionally txt out the blue. i ask why are they txtin and he says he doesnt know. i have been through his phone when i can and there is strange numbers etc, he swears blind he doesnt want anyone else . help