Driving this car off the cliff

It's time to say goodbye to what I thought we had. I don't know if I was realistic in believing it was truly how I saw it, but it doesn't matter now. There's nothing left to do but say goodbye. I don't think I'm strong enough to do this. I don't feel strong enough to hold myself up in a chair right now. It has to be done, and I'm never going to be okay some distant someday until I let it go completely. The pain is mostly over. Now it's just me holding on to sadness, and sadness does what sadness does. We've parted ways. We've walked our separate paths now. We've seen that neither of us had what the other needed. It's so hard to miss her sometimes. And, it's the only thing I can actually feel most days. If I say goodbye to this, then I will have nothing — just a big, black hole in my chest. Still, I know this is all I will ever have if I don't let go. Letting go means I can have something someday...