What do my parents think of her?

If a man cheats on a woman then the parents automatically hate the guy. No matter what type of guy he is or what he stands for, he is thrown under the bus and never forgiven. Not to say that this is right but you should give the guy a chance to explain himself. Don't just hate the guy and never talk to him again. You wouldnt want for him to do that to you if the shoe was on the other foot.