question: I'm 34 and dating a 51 year old man.  We began the relationship with vigorous sexual activity which at the time he informed me was not the norm.  We've been dating now for 6 months and instead of 4x we're down to 1 or if I'm lucky 2x.  Everytime I ask about the decrease in activity he always explains that it's not me but I can't help but wonder.  He is completely healthy and worksout 5x a week for 2 hours.  He also plays raquestball on a regular basis.  I don't want to push if it's a health thing but if not  . . .