My partner has a high sex drive and mine hardly exists. It is an effort to actually have sex as I have no drive at all yet Partner constantly goes on about it despite knowing I dont like it. He goes on about going in to ann summers etc. I do try and 'do something' now and again (usually once a fortnight) as I feel a bit guilty but he then asks me to go on top etc etc and that just puts me off even more. Im really starting to get stressed over it, why is it such a big issue for him? am I being selfish?