Hi, I'm going to step in here. I've read through your posts and feel mostly caught up.
I am, however, perplexed by your last couple of statements here. I'm wondering if you understand that people can be seen as physically attractive by some or many, and still have to do things like work hard at having healthy relationships, break up and move on sometimes, etc? It's part of the human experience, regardless of how "pretty" you are or are not. Physical attraction is one
piece of the puzzle, and only one piece. There are more pieces in this puzzle.
Sometimes people work well together, and then they don't. It's unfortunate that he's choosing silence as a way to end things, even after saying he wouldn't. I'm sorry about that -- how hurtful. People say a lot of things and then the reality is different. For instance, the divorce rate in the US (and beyond): if saying you're committed to someone forever worked 100% of the time (or even just for the people who find each other attractive or had happy times in that first year or three), then marriage would be an entirely different institution.
You are not alone in this.
Also, sometimes people outgrow each other -- for instance, maybe you two were transitional people for each other, and now you're growing in different directions. Or he got overwhelmed and couldn't deal anymore, for reasons including you or not (serious grief can be extremely life changing, for instance).
I'm going to echo what many others above are saying. You're stuck in patterns that take work and support to break. You're likely to keep winding up here, in this position, without some changes (including identifying and changing patterns, getting anxiety under control if that's a factor, etc). It isn't easy, but it's worth it.