text: what is the average number of days a week should a couple have sex ...? if they have only been together 4    1 yr.  b/c i want sex all the time and i am 32 my fiance is 37 and he only wants to do it about 3 times a week he is totally in love with me but sometimes he neeeds a break,he said he is not as young as he used to be..can someone explain this... everything is okay.  he is 37, and he's correct.  a man just can't last as long as he get's older... and the sexual drive isn't there like it used to be.  you on the other hand are just coming down out of your sexual peak and are still wanting it all the time.  be a little bit more understanding for your man... if it's a real concern find a local health food store and look for some herbal suplements that will help build up his libido.  there's also enzyte... the happy pill.