Heh.
Good luck with accepting that in your relationship tamilla.
This man clearly wanted to shag this woman even though he'd promised not to have contact with her anymore ... a promise made to his wife.
Sorry, but why should women be expected to suck up shit behaviour like this?
She might have cared about the marriage. He didn't care about her, or his own promise, or his marriage vows ... "forsaking all others".
There's very little marriage left when you can't trust your husband to keep his word.
As for thinking of the child, well, the child picks up on much much more than adults used to think ... And a lot of grown up children from unhappy and untrusting relationships say they wish their parents had parted. I think myself that the expectation that parents would stay together no matter came about because women were so very dependent on their husbands financially.
It's a better situation where women are not dependent so much, where their thoughts and needs are taken seriously as well as the man's, and where they can demand integrity from their partners ... Just as men can demand integrity from their partners.
Out of interest, do you really think that her husband would have accepted this behaviour if it'd been the OP doing it? I don't. Double standards are pretty rife.
It's a very very good thing that the OP can take her time to think for herself and decide what -she- wants.