It's not okay to hold a grudge against people.
Sally and her boyfriend broke up but Sally was really good friends with her boyfriend's frail mother.
Sally wanted to visit her ex-boyfriend's mother to stay in touch.
Sally visits her ex-boyfriend's mother, and she does not try to talk about her ex at all.
Sally visits her ex-boyfriend's mother, and she talks about how mad she is at her ex-boyfriend.
Sally's ex-boyfriend's mother enjoys their visit and it is a pleasure to have her over.
Sally's ex-boyfriend's mother is upset by the things Sally talks about and their visit is stressful.