I have changed?

If he has cheated on you, and you cheated on him, you probably don't have the healthiest relationship. And if you really need to clear your head, i suggest taking a break from each other, it will make things easier right now. And if during the time you were away you realized you really need him, then that is good!! That means you should get back together and work it out. Taking a break is the only way to calm down and understand what you should do and how to be happy. HOPE I HELPED!!