GM, I can certainly sympathize with you about going to your W's living space. My W has the whole upstairs to herself (only 2 rooms and a 1/2 bath), and going up there does weird things to me. I automatically start looking for signs of what she's up to. I can't even help myself. I ostensibly see things I don't want to see, then get mad at myself for not wearing blinders when I go up.
Just make it a quick trip, try not to even use the restroom while you're there. That's the best advice I can offer on that front.
Be careful about retrouvaille - might work if you pick your battle, but as you've already acknowledged, controlling actions won't help.
Me: 31 W: 28 M: almost 6 T: 10.5 S2 Bomb#1: 05/11 Bomb#2: 11/11 S'd: 11/28/11 Moved back in: 12/28/11 MC: 06/28/12