Nonetheless, you have your faults. What have you done to hurt them, or what have you done (at least partially) to drive the two of you to this breaking point? Consider whether you’ve been negligent, or whether you’ve been the one who’s been refusing to admit mistakes or be better.
But maybe, just maybe, it’s as simple as this: you don’t have space in each other’s lives anymore. Do you want to make that space, or do you want to move on?