Stayed out for a while after work and talked with my mom. We talked about recent developments in the situation, and what I found in the text messages.
Basically, I was able to confirm that they are using iMessage to communicate, that he was originally planning to help her move, and that the feelings between then are much more parallel than W stated (which I expected).
When I got home, I got the silent treatment from W. That was fine, since I had nothing to say. I wasn't home for 5 minutes when she and our son went out for dinner. Afterwards, she went around the house and packed up the last of the things she is taking.
Me: 30, W: 29 S: 4 T: 14 M: 5 BD: March, 2015, ILYBNILWY, IDLY, Need Space OM, EA/PA Discovered (drunken kissing, she says she stopped there? NOPE!): March 2015 S: April 25th, 2015