Good advice, thanks. I'm not sure about the alimony thing either - I haven't seen a lawyer yet. For all I know, she has. I wouldn't doubt OM would find money for that!

We had an interesting evening last night - she told me she had a fun Mother's Day at the circus, and I overheard her telling my son that they needed to think of something fun for Father's Day for us to do.
That sort of comment freaks me out, and I've got a list a mile long of those - saying how much room "we" have in the barn after the garage sale, talking about buying a family computer our son can use, and asking ME when I would like HER to move out. She also talks daily about how terrible it is that all her fellow students are divorced/unmarried Moms, and she'll be one too - what can I say to that? Your choice, Honey?
Of course, our detached but pleasant evening was followed by a phone call to OM after I went to bed, but it's still strange. I figure soon he'll start feeling jealous and causing some grief for her - but who knows, I've met the guy, know his story, and he's a major doormat for other people. I don't want to make the mistake of characterising their relationship as an "affair" only, though. They spent a ton of time together with the kids and were friends first - MUCH worse for me than any kind of "fling", I think. Any thoughts? Another observation - possibly false - I don't think she's in love with him, she may just see him as a safety net, with future possibilities. THAT may be my wishful thinking.
Anybody in a similar sitch that can shed any light on this for me?