It makes sense to me. From the things you describe, she seems to have lost herself in her sitch. It's snowballing on her. Instead of saying that was a mistake and putting it in the past it seems like she is trying to show that whatever she got into with OM wasn't such a mistake because they still have some kind of connection - but however many flowers she throws on the pile it still stinks. That's probably not quite the right metaphor. . . .
She is certainly in her own little world - She'll sit here off and on during the day and IM the idiot back and forth. She never seems particularly happy when she talks to him. I've not read the messages, and I really don't care to.
As of right now (and I'm sure this may change), I'm really feeling 'turned off' towards her because of her behavior - She's talking about doing new things and not doing things she has always done, because they are thinks OM does. That just seems like such a bunch of crap to me - After six months, do you REALLY think that copying what he does is going to attract him if he's not really interested already?
It's gotten to the point where W is just totally unaware of what she is doing. Maybe if I back off, or even start meeting new people, she'll wake up. Right now, if she follows this path, she's going to end up with no one.