How do you get guy that loves you to stop loving you?

Good question; how long have the two of you having an affair? It depends on individual if the married lover is willing to loose what he have with his wife and maybe kids to. If you are the other woman, all you have to do is tell him, and explain to him that you are flattered by his affection and love, but its not what you wanted. But be aware there are some married men that will do something so they won't stop being with their mistress. If he knows your weakness, he might use that towards you, he will say that him and his wife doesn't have anymore marriage, or his wife didn't love him anymore. Don't let him manipulate you or else you will have a hard time getting rid of him...Good luck

If you are really serious, get a restraining order and have him arrested if he continues to contact you in any way. Make sure the order says NO CONTACT and specifies how far away he must stay from you. This is a last resort thing, so be very sure of your feelings and the possible ramifications before you take this step. No matter if the relationship was consensual in the beginning , when you say no, it's still no.