There have been several threads lately about work colleagues being intrusive into the lives of the OP, and others about friends who borrow money/ ask for childcare etc and never pay back or reciprocate.
Among the replies saying dump them, block them etc, there are always some which say “she probably looks on you as a friend”, “she needs a friend”, “a good friend would do x” and so on.
AIBU to think that you can be friendly with someone from work/neighbour/school mum without necessarily being their friend? That you are only friends with someone if both of you see it as and want it to be a friendship? And that no-one is under any obligation to be, or remain, friends with anybody if they don’t want to?