What would you have done??

Hey ladies, so a friend posted the following in Fb... 
Now here's the thing we are the same age and are both single moms. As a grown woman with I child I feel I have no time for this kind of non sense anymore. In her place I would have let the chick know her man had lead me to believe he was single, I would apologies and be done. I would delete and block the number, if she wants to fight she can go do that with her man. Yeah the chick is dumb for sticking around with a cheater, but there was no need for her to antagonize her by saying those things. She's always entertaining iffy guys, its always something with her. But any type of advice I try to give her she takes it the wrong way like Im judging her. Anyways, do you ladies think Im wrong? And how would you have handled the situation? She claims she doesn't give a shit and wasnt even interested in the guy, yet she gave him her number. And is obviously upset about the situation since she keeps talking about it. But she's the type of chick that tries to act hard, like nothing ever hurts her...