I knew this person before the pandemic as we were in the same theatre group. They are nice but have serious depression and mental health issues. Also a nice person but always talks about themselves and never asks how you are.
This person stayed involved with the group and I drifted during covid. Now I've started going again with a brand new group of people, it's clear this person has made no real friends in the wider group and they've latched onto me. Peoples faces fall when they approach, they still talk about themselves all the time and they gossip about a person I like. The group isn't comfortable with this.
This person has made it clear they now intend to join our group and hang around with us now. I'm really hacked off about this as I feel they've just pushed themselves on us. We are a group of positive, calm people and they are narcissistic and draining.
YANBU - be colder in future/ease off on being my usual friendly self as a hint
YABU - you're stuck with them now, more the merrier