Vent!!

Omg how do I get over my ex? Every time I think about them my heart aches so bad, like it physically hurts. We were platonic at first then we became a couple for about a month when we both realized that it wouldn’t be a great idea to date since we we’re both in bad mental states, but after we broke it off we remained good friends and it was platonic and maybe even romantic bc even though we weren’t dating we acted like it. We soon got back together again and it was great, we dated for a good while. One day we were on call for hours then the next day they ended it saying that they can’t be in a romantic relationship for now bc of school and stress but then a day later they are posting on the socials about their new boyfriend . My heart shattered knowing the truth, and tbh I think it’s bc they don’t see me as a boy (I’m trans ftm) and I understand I don’t look anywhere near masculine to even slightly pass (I can’t really do anything about either bc of religious family) but it just breaks my heart. What should I do about these feelings? How do I move on? Sorry for the rant