Just curious

I noticed that my boyfriends friend ended up blocking me on fb. Never thought we had an issue, he calls me “sis” and we greet each other (on a cordial level) every time we see each other. I expressed to my bf that he had blocked me and I’m like “why”??? My bf kept saying “well he just blocked you. No reason! He has no problem with you tho”........ Am I wrong for feeling weird about this? I mean if you block someone you obviously have an issue with them... Right or wrong?