What do you think of me avoiding a part-time coworker that says I am their 'best friend' and keeps saying I have their back and that we hang out together?
Do you not want to be friends with this person?
I don't consider her my friend.
It's mean to just ignore someone without telling them why. You should always get along with coworkers.
I don't want her to start acting like my friend.
It's understandable that you want your work relationships to remain professional and not get too personal. However, avoiding your co-worker altogether will be hurtful and can affect your working relationship.