Guiliani divorced his wife and married the woman. I understand why you don't understand of see the difference. Let me explain it to you as best I can.

You see, sometimes people who are married grow apart and they might meet someone else who they are more fond of and vice versa. When that happends, people get divorced and they move on. That is what happened to Guiliani.

Sometimes married people find someone who are just for pleasure and fun sex with nothing else and they want to stay with their spouses, but still want to play with other people. That is called being a jerk, whore, cad, a prick, a cheater, etc.

I hope you understand the difference now. If not, you may have to find some adults at your school who I'm sure will be more than happy to help explain it further to you. Thank you and good night.