I guess you're right, maybe I don't really have to "wonder" about that... I usually laser-focus on one main thing during a hympomanic episode. Been way too long since I had one - could really use one right about now.
Maybe your plan will help you decide who your real friends are... I did something similar but I also didn't answer most texts or pick up the phone if someone called me.
You are worth it and not a "horrible POS" I would say based on my time here. Most people are pretty self-absorbed and fickle I think.
If it helps, I'm very confident that I'm more annoying and more of a POS than you. Also much more horrible.
If you're truly ready to cut yourself off from everyone this will help and maybe make you laugh once or twice:
How to Cut Yourself off from Society: 17 Steps (with Pictures)