''she wants her ex back, but wants S*x from me''

''How do i stop this? I met this girl last year and we have been dating for 8 months now. Before now,she told me she has a child for a man she dated before we met. The problem is that the man is back in her life and he wants to marry her and she has accepted his proposal. but even at that, she still wants me. Each time she comes to my place, we end up having sex as she will be the one requesting for it.
pls i need advice...i can continue satisfying her while she is married to another man, i have told her to stop but she won't just listen. i intend to report the whole matter to her hubby, pls do you think that is the right thing to do? ''

This is a mail sent in by one of my faithful readers...i won't mention his name to save his ego. folks...i need your feedback...let's help this guy. kindly drop comments. tanks.