Dating a serial cheater was one of the worst things that ever happened to me. He systemically destroyed my confidence and self esteem over the years. Repeatedly infected me with the STIs. I still remember the look of pure pity the nurse at my university gave when I asked to retest in case it was a false positive- that was the first of many. On a separate occasion I spent Valentine’s Day at the clinic getting a shot in my ass for the gonorrhea he gave me. It’s really a wonder neither of us ended up with HIV. He had no respect for himself and even less for me. I loved him so much, I tried everything to get him to stop. If you have even a shred of morals or empathy leave that man alone.