Hit it, but don't let the kids see you. They remember shit like that, and internalize it. The last thing you need in this world is another child growing up with a whore/Madonna complex about their mother, because she was boffin young men (possibly a series of them)
In reality she is not really worth your time. What decent 45 yr old with kids spends time chatting and doing nasty shit on the computer? Women today got too much time on their damn hands, if she were the real deal, she wouldn't be dealing with you, she would be dealing with other 40 somethings or at some nudist colony (from the pics Ive seen , 40 somethings are always in nudist colonies).
Hit it and keep walking, a trashy bitch goes in the trash bin---some other man let his trash be another's (you) treasure, don't be fooled you do the same.