FB is prone with all kinds of stuff like that..I've had family members pissed for months because I didn't respond to their msgs or I supposedly unfriended them. I haven't relied on FB to communicate with anyone in years.I use messenger from f/b. It works well with the exception of one contact I’ve known forever. We’re on good terms but can’t use messenger at all. I am NOT well versed in the area. Any help would be appreciated.