Yeah................personally I'd say "no thanks" to all that baggage and just move on to something a little more normal.
Lets try to go with one that doesn't already have kids as that right there is generally a problem.
Of course, then you have the dillema that she's probably screwed now, then if you leave her she'll go insane and lord knows what, so yeah.........have fun with that.
I wouldn't be able to take it knowing that she had slept with that dude and I'd probably want to kill him for putting up such a thing in the first place.
hmmmm I'd find the guy out and about one day, break both of his arms, a leg for good measure, and steal his wallet just for fun. Either that or I'd cut and run, all depends if I had some sort of emotional connection to her.