It would be easy enough to rephrase a bunch of MGTOW stuff, which I think mostly goes too far really, but instead I'll say: I'm sorry you're going through this. I myself either hope for my ex-wife to finally return while I am still single or maybe someday marry a friend I had a crush on from before I knew of my ex-wife (but never sought a romantic relationship with because she was out of my league, even though otherwise we're ideally matched with her being an ENFP and me being an INTJ, as well as equally yoked with both of us having basically the same religious and political views. However, she has more college than I do and was far more attractive physically, so it seemed pointless to bother back when we were both single.) I don't know what advice I could give which hasn't already been given most likely, but I sympathize with your plight though.
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"In the kingdom of hope, there is no winter."