Lied to.. 🙄

Just broke up with my SO today. Found out he had slept with someone last year when we broke up, but continued to message her throughout the relationship, multiple invites over, I think it was only the once but he never told me and they've exchanged many dirty pictures. He was also sexting other girls using pictures of our ball gag and cuffs etc. 😔 Did I make the right decision ending it?