It's good to see you back again (well, not really, for YOU, but you know what I mean)... remember when people thought you were my wife?
Don't underestimate the POWER of the fact that he may just have grown cold from too much rejection over too long a period of time. Whether that's taken the form of resentment, or just low libido from "stuffing it" all those times, to calculated revenge and wanting to see you suffer -- or some combination of all of those -- I believe that's probably what's going on.
