Cheating ex boyfriend wants to be friends

#1: He caught feelings for one of my best friend's and it got back to me. So of course I was hurt that his feelings were for someone other than my own. #2: He offered to have a "make out session" with a girl from his gym. This past summer for my 16th birthday I got a trip to Ireland, England, and Wales. He took me on an amazing date and we spent quality time together so that while I was away everything would be okay. 😐😐😐 #3 while in Ireland from one of my good friends who had moved saying that my boyfriend had DM'd her telling her how hot she was and about how amazing she would be to date. The day that I was to fly home from my trip was our one year anniversary He barely texted me that day. Here I am feeling crappy because I can't be there to spend our special day together... #4: The next morning I woke up (jet lagged I might add) to a DM on Insta from a girl I didn't know. All I knew about her was that she went to a track and field camp with him that he had gone to earlier that summer. She toldme that the night before (the night of our one year anniversary) he had sent her and her friends snapchats of his dick. He then texted me breaking up with me before I could confront him about it. *fun fact I told both his mom and dad who loved me like their own what he had done* but then I was devastated and couldn't eat or sleep for the rest of the summer until I found my current boyfriend now ❤️ but anyway now he's been baptized and is "changed". He wears a cross around his neck and goes around saying scripture. But more importantly he is also co-captain with me on the track team. He wants to be my friend again. But my current boyfriend who I love with all of my heart doesn't feel comfortable with it. I don't want to upset my boyfriend but I don't want to cause conflict on the team since we have to work together every day. 
 What should I do? 

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