My depression is gone, thanks to my willpower

[maks]

Look, It's quite awkward to have her, I already understood her decision, then I shouldn't bother her anymore and I mind my own business now.

I understand, but you need to learn to identify girls like that and not get infatuated with them in the first place or this is just going to happen again. If you can't just enjoy them when they're around, if you're always going to feel like you need to possess them, then you need to avoid them and hang with a different kind of girl.