Hello house, a friend of mind told me that his girl-friend told him that they should just be friends after dating for about
4-5 months. Now after one week she saw my friend with his colleague(girl) which she never knew was the his colleague in the office
and told my friend that she is jealous, and things like that. though my guy told her that nothing is going on with her anyway.
But she still insist and all of that.

The question my friend did asked me is that what is the meaning of that impression of her, and i'm asking the house the same question.
what must i tell my friend to do?