Guy told me his ex was movin out

I’m so embarrassed. A few years ago I started seeing this guy. At the time he told me his ex was moving out of his house. I was stupid and believed him. Well the whole time he knew she wasn’t going to and honestly, to her, they were very happy. I finally told him I’m done and I was super pissed. She found out and told everyone in the town (small town) that I cheated. Not him, just me. I was around the corner today at break and heard this guy talking about ME, saying I ruined these two relationship. I was the problem, my fault, I’m the wh@re. This guy told about 6 people around him. As soon as I walked in, they all got quiet. I feel so stupid! I should of known not to do what I did but wow. I know I should of waited till she moved out before proceeding because I was cheated on constantly before this….50 year old men are gossiping about me, 30 year old, quiet, shy women. I just want to cry. This guy telling everyone this was his friend.