I know that once I choose that path, reconciliation is off the table for good and that causes me some pause.
Just for what it's worth, my personal experience and what I've gleaned from friends on this board - that statement is how you THINK you feel inside, but is often not the reality.
Chances are slim that you would actually LOCK the door to your heart, at least short of falling for someone new.
Move on and live life. Deal with what comes as it comes.
"Don't tell me the sky is the limit when there are footprints on the moon."