Reading about other people being given so many chances breaks my heart

I don't wanna invalidate anyone's breakup or anything, but I just need to vent. So many other stories on here are about people who were broken up with after plenty of chances and everything...

Yet here I am, got dumped out of the blue. She never properly communicated her issues with me, then said as we broke up that to her it's not fixable.

To me it easily was. Because it was a simple thing as spending more quality time together and me being more affectionate towards her. But no, she said changing now would feel too forced to her. So no chance, no telling me her issues, no nothing.

I tried to work on myself, I put in the effort to change and ended up reaching out, simply writing an apology and accountability letter. But also there, no reply, no nothing. Just ghosted.

Idk. Makes my heart hurt a lot. I'd do everything to at least get one other chance. I can do so much better. I'm truly jealous of people that were given another chance.