I have deleted 3 people in 2 years who I didn't plan on speaking to again and didn't really speak to much anyway.
One I deleted as he had been really fickle and messed me about with jobs twice (long story).
I never saw him in person anyway, we'd exchanged one or two friendly messages then it just moved to 'likes' on social media. I work in the same industry as him and basically he promised me a role then changed his mind the next day for no apparent reason.
Did the same thing again a few months later, asked me to work for him then suddenly the next day didn't need me, no explanation. I decided he wasn't worth my time and just removed him.
I noticed a couple of days later that he's blocked me...
One was a girl who only got in touch with me when she was single (literally, I didn't hear from her for 4 months, after she declined an invite to go out. Then one day she suddenly started messaging me and told me she was newly single, and then suddenly wanted to meet up all the time, how convenient.
Anyway I'd find that she just wasn't really that interested in the end and it kind of seemed like she was only messaging me as there was nobody else around (by her own admission).
After almost a year with no news, I deleted her and not heard a thing since.
It's stuff like this basically. Another one I deleted as I got tired of her constantly cancelling last minute and blowing hot and cold with me. I tried to get in touch with her a while later but she wasn't interested which I understand.
Looking back though, deleting was petty maybe? I know it's just Facebook, but the first man blocking me has made me feel bad. I should just unfollow. I'm probably overthinking this a lot?