I also have some stories when exes got back:
1.) my cousin dated this guy for few years then broke up with him, started dating again and few years later, they again got together - they are now married and have 2 children
2.) me and my current ex, were dating for 7 years, when she broke up with me because of trust issues, we were apart 2 yrs before gotten together again...for the whole time while being apart we remained very close friends, she had some guys while I was too clingy and too afraid of losing her so I had none. Tbh if I had some balls, or would know how, we could have gotten back together much sooner. Now few months ago she broke up with me once again, because I neglected her and wasn't masculine enough. We're now in limited contact, so I don't know how will it end this time. I'm hoping for the best.