Well, that's quite a bummer. I really enjoyed CoM, and it does feel like quite a letdown having paid for it on itch, to be honest. But obviously if it's not working it's not working, and I can't really blame you for cancelling (or at least putting the game on indefinite hiatus with no real expectation of return). I am, as they say, "not mad, just disappointed." I certainly understand that shit happens.
I will second the suggestion that you make at least the first few builds of My Girl Loves Handcuffs free to download on itch to avoid a possible repeat of the issue where some folks bought the game on early development with an expectation of seeing it completed.
Good luck with the development of MGLH.