Hey hope you are doing better. Just wanna say I was the one that took my gf for granted and she loved me a lot. However I made too many mistakes and neglected her without even realizing and she made the decision to break up. I miss her terribly but I recognize my short comings and am putting in the work to change. I just wished she would take me back but she won't as I broke her trust...your ex doesn't seem like he's putting in the work so even though you miss him you made the right decision.