If that's the timeline (multiple addictive behaviors, infidelity is only one of them, and some "life crisis" came first), then I agree. It's also true sometimes, however, that thru "re-writing of marital history," a cheating spouse will pre-date their affair and claim that "Oh, I've been unhappy for a long time now," or "I emotionally divorced you a long time ago, so it's not really cheating," etc.
Puppy
I agree with you--this is the all-important distinction. If only it were always easy to see in real life!
