Her friends keep updating. IDK why

Hey guys! Just want to ask a quick question, do your ex-girlfriend’s friends still update you about her life? Mine does and I don’t understand why. Not that I’m uncomfortable or anything but I just find it a bit weird? I’ve made friends with them too, let’s get that right but I just didn’t think they’d still keep me in the loop after the break up. They’d be like “hey how are you? We’re with (ex’s name) now in (place)” or that one time they were like “hey pray for (name) to win free tour to this raffle” or something like that. Is this like common or something?