slowly moving on from a toxic relationship

I broke up wit u bc I was hearing so many rumors of u messing around wit other girls even before the break up I was questioning our relationship bc we were having a lot of issues as it was but hearing these rumors was the last straw for me. After our break up we both still had many feelings and love for eachother we would even still act like a couple bc it was hard for us to not flirt every time we saw eachother, a month after the break up u asked if I could give u one more chance and I unthinkingly said yes bc I had so much love for u. So you and I started going on dates again but after the 3rd date we started arguing constantly all over again and I didnt want to put myself through another heart break so I told u right there that its not healthy for me to go on wit us again and I cut it off u were begging me to stay but I knew it wasnt right so I walked out and left. A few months pass by I still love u and u still love me we talk on the phone all night till we fall asleep with eachother, a few weeks go by I still have feelings for u and u do too but something u did is about to make my feelings that I have for u fade; My best friend has just told me that she saw u hooking up wit one of my close friends. My heart stopped, I felt alone, betrayed, and confused. How could HE do this I wondered to myself how could SHE do this! At that moment I realized I needed to cut you off for good this time I gave u to many chances. So I pushed u out of my life for good, I still love you but will never let u back in.