I work in an office of 5 others.
One colleague I have helped outside of work will no longer speak to me / won't even say hello , she is now over friendly with the other staff, when she wasn't previously.
Boss said they hadn't noticed but would intervene if I need them to.
It's just very uncomfortable to be in that environment.
Shall I just ignore them ? I have asked them if I have done anything to upset them and they said no.
Is this normal behaviour ? I have never experienced this before , please help.