That is true. But also remember that when you were having your A, you also probably spent money on your GF. And it's even worse when you are open about it to her which of course belittles her.
Now it's her turn to get the love of someone she feels understands her now. Will reality set in? Sure. Sounds like she still loves the kids very much. But now she's in the "me" phase. She's doing what she wants to now and not what anyone else does.
Keep praying that it'll pass and have faith.
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.