Sooner: Are you distancing because you're trying to get a reaction out of her, (i.e., trying to get her to intiate physical intimacy) or are you distancing because you are emotionally exiting the marriage? Because, if it's the first reason, that's just being manipulative, IMO. If it's the second reason, you need to just tell her that's what you're doing. Another reason for distancing is to maintain your integrity and be less needy, clingy, pressuring, etc.
I suppose I've done all three at one point or another. The third reason comes back every now and then, and, to me, is the only valid reason for distancing if you're staying in the relationship.
But it is not an effective tactic for improving the relationship. It is, essentially, cutting off intimacy by foreclosing communication. You need to talk to her. If you can't talk to her, you need to get MC.
