Does A Cheater Suffer Any Remorse?

Yesterday was the first day that I have heard from him in a long time....and of course, he needed something. I never returned his call and thought that I would leave him hanging as he has done to me many of times. Does a man/woman change once they have cheated on you? Is there real remorse? In my ex husband's case, there was no remorse.....not for me, not for his cheating, nor for the family that he broke apart (ours). I do, honestly believe that people CAN change, but they must be willing to do so and want to do it for themselves, for bettering themselves and to not cause any of the pain that they once caused before. Life is SO short, you hear it and breathe it all the time, so will things be any different with his other woman, than it was with me? I already know the answer to this question....in my case, he is going to be the same person that he was with her, than he was with me and that's because he saw NOTHING that he did wrong. He told me that it was MY fault that I couldn't share him with someone else. He thought that his transgressions should all be swept under the rug where you can no longer see them. How did he not think that by my not seeing the problems that I still didn't have feelings? Being deavistated by my ex really seems to have made me more aware of men, even though I don't want to be this way. Are there any really good men out there? YES, but they just seem to be a little more harder to find these days.