Right now she sees the OM as plan B. She is attracted to the fact that he has kids (which means he's responsible, etc.). Start rebuilding your own private life so you're not so concentrated on hers.
In her mind she's going to say that it's "okay" because you're separated and they're "just friends". Load of BS.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.