You didn’t do anything wrong with that email. The first step is to get a hold of yourself and regain composure. You are on the right track. All the best.

Kevin, me and my ex were dating for 5 years until in 2013 I made the horrible mistake of cheating on her, I realized that mistake and gave her space and about 4 months later we got back together, I messed up and hung out with the same girl again and my gf found out about it again and now we have broken up.