Things can be going great / fine for months, and out of nowhere she can and will end things just like that. You have no control over how other people feel or think about you.

And if you were married or pregnant then you're super fucked.

The game is rigged, there is no way to win. She isn't yours, its just your turn, she'll dump you eventually, somehow.

Yeah i'm fucking pissed. But also very grateful, thankful and fortunate at the same time. Could be a lot worse.