Most Helpful Guy
First im sorry you are going through that. I;m going through the same thing with my ex.
Tbh i doubt you could win him back due to him already found another girl. I find working out and making the other person jelly if you can helps. My advice is workout to get your confidence up and meeting new people. Always hang out with your friends and always be doing something. If you are bored you will think about him and be even more heartbroken i found.
If you wanna talk about anything just message me.
Hope this helps *hug*