Wife walking away

[LBSinTX]

Update - need advice. So, we go to closing on the house on the 18th provided no major issues at inspection. She told me last night that she will be filing this week. Now, things have been pretty friendly between us. Yesterday we had a really long and friendly conversation. She showed me the new vehicle she bought and seemed very excited. She told me about her weekend. When she told me she was filing I said "man, you're not wasting any time." She told me she was worried that I would pull some stunt and try to take the kids away from her - which I wouldn't unless she really did something stupid. She's a great mom and despite our marital issues she's the most trustworthy person I know. I found out that she stayed with a mutual friend over the weekend and I realize that she hasn't been spending any time with suspected OM. If there was anything with suspected OM I think it's flaming out. So, I told her I wouldn't do anything to hurt her or the kids because I truly believe they belong with her. I told her that I care about her. She is really expecting me to act out. Three weeks have past since ILYBNILWY and there have been no incidents. I haven't asked her whereabouts or criticized any decisions she's made or acted out in any way. Our conversation last night was pleasant to the point of being playful. But when I told her that I wouldn't do anything to hurt her the talk turned to the past and she told me that things were rarely good in the history of our relationship. Not true. She used to be head over heels in love with me and it seems that she's trying very hard not to be reminded of that right now - which I understand. She acknowledged that I've acted much differently than she expected. She told me I seem very happy right now and that I really seem to be enjoying life. I told her I was. She told me she wanted to make sure that I wasn't going to go into some deep depression if she filed the divorce. I smiled and said "Wow! Someone thinks a lot of themselves." She smiled and looked down. She said she wanted to know if I was read to move on. I told her I accept whatever happens right now and that even if both of us wanted to return to the relationship right now it would be disastrous. She nodded. I joked and asked if she wanted to go out in a few months and she smiled and said that's weird. She said we're talking about divorce and you're talking about going out. I knew I shouldn't have said it but there was a sense of connectedness there. I said goodbye and left. Now, my question is should I return to trying to go dark. I get such a positive response from her when I engage her in conversation. Here eyes light up and she smiles when she talks to me. I'm so confused. She expects me to be a distant jerk and pull some stunt when she least expects it. I fear if I truly go dark then it just pushes her further away. My gut tells me that being aloof but friendly is a good strategy but I'd like a second opinion. I talked too long last night and maybe came across as needy. I'd like to have those positive interactions and cut them short when she seems to be enjoying them but not in a rude way. Just like I have something else to be doing - and I always do. I can tell that she doesn't know how to take me when I'm not pressuring, criticizing, and being rude. She is waiting for the old me to surface. Any help would be greatly appreciated.