Search Results: ask him to give me a second chance

My ex and I met about 4-5 years ago when he sat in front of me during our high school graduation by staring at me but we never spoke. Then the following summer, we had gotten the same job. We started interacting with each other all summer, and surprisingly went to the same college. A forever romance right? WRONG. I had ended things because I was being treated like trash like embarrassing us in front of my friends, and he confessed that he cheated on me as well. He apologized for his actions, asked for a second chance, and I gave it to him out of hope.

Then, we finally started having sex which I was hesitant about but I wasn’t sure how else to keep the relationship going. That lasted for about 5-6 months before he ended it saying “I only gave you the time of day so I could say I had sex with this specific ethnicity” and left. He ended up showing at my workplace a couple of years ago, and smiled at me. I didn’t smile back, and it bothered me so I messaged him on another social media account telling him off and he apologized for everything that had happened. I blocked him on that outlet and thought that was it since we’re both in different relationships now. I created this new social media outlet for graduate school and he sent me a friend request on there so I’m not sure if I should accept it or not. What do you think?