I'm wondering if I misread your OP. Or did you edit it?
If not, I've misread the question. You are asking if I ever wonder if it's worth making friends, right?
I used to do that. Maybe it's a matter of fine-tuning your social skills and what you want and sizing someone up? Learning to judge what's a good fit for you before you commit so much.
Edit: If you've been out of the loop for a while you might need to refresh your skills.
And - learning to pace yourself in relationships so that you don't deplete your energy.
Does that fit?