It's inappropriate to get involved with your ex's friends.
Andy's friend Scott breaks up with Andrea after they dated for two years.
Andrea wants to have a new boyfriend.
Andrea severs ties with Andy despite always seeing him as nice.
Andrea decides that she is interested in Andy and starts to date him shortly after.
Andrea meets someone new shortly after and is still on good terms with Scott.
Scott accuses Andy of being the reason for the break up Andrea and stops being friends with both of them.