Why do women feel "stuck," after putting out for a guy?

Asked by Anonymous05 (185) August 14th, 2017 from iPhone

What happens when women “get stuck,” in a bad relationship/situation with a guy?
Long story short, my friend has put out for a guy who owes her money, before this whole money situation, and we keep telling her to drop the money situation because even though he says he’s going to pay, and use to give her small amounts back, we think there’s something off about him, and that he has the potential to get agreesssive with her sexuality, and not pay her back. They have had a lot of huge arguments about the money in the past over text too, now it seems like he makes excuses to move the payment, and she keeps talking about going there to get it back regardless of his excuses, we tell her to bring a friend, if that’s what she really wants, but I think she could get stuck in this bad situation. Also he has texted her every now, and then to see how she’s doing, so we don’t get the point of that, if he avoids paying her. Bottom line we see him getting agressive, or she gives him another chance, and puts out for him again, then they run into another problem.
What’s going to happen, if she doesn’t let the money go, and gets stuck in this?