His new girl and him

A friend of mine made a mistake of sending me my recent exs photo posted on with his new girl that he cheated with me on. Just needed to vent to the community and let me feelings out. I felt so crushed. Small things trigger saddens like being with him for a year and him refusing to post is on social media but dates this chick for two weeks an she's up. He told me he didn't have the time or financial stability to give me what I wanted but he's there wining and dining her. I feel used. I'm the end I did it to myself I know lesson learned but damn this shit sucks.