My point is if she knows you are there for her no matter what she has no incentive to take a second look at you. No matter how crappy her behavior is, you are there. Why *would* she want a husband full time when she has you "part time" to help her out when she needs it and the rest of the time she does whatever the hell she wants?

You have given her every reason NOT to come back to the M as she knows no matter what, you will be there. It is ideal for her. She gets the stability of you being there, only 50% responsibility for her children and the rest of the time she is single and free! A good gig if you can find it!