How long have you gone without the physical interaction?
This "friends" thing is bad for your mojo and your sex drive unless you have that need met elsewhere, again bad advice - but it is the technical truth.
One of my reasons for eventually cheating is I'm getting older, and I would hate for my sex drive/life to get slowed or shut down by a non-cooperative partner, to never ever come back the same again.
Why can't the wife allow you to give her that attention?
I get the "fell out of love" thing. In marriage you are not always going to feel those strong "in love feelings", sometimes we do what we are supposed to do.
