Not sure if I can give any advice. Just know that many on here feel your pain. It's so confusing when a person you love and trust, breaks that so quickly and leaves. You may want to look into the 180, alot of people talk about it on here. Basically you back off, do a 180. Don't beg, plead, try to make them understand how wrong they are. They are wrong but you can't change their minds they have to do that on their own..Your situation just sucks, make sure to lean on your family, get support, find someone you can talk to. You probably feel ashamed or embarresed, I know I do, but you have to come to terms with the situation.