Scenario: Mary and John are in a relationship. Elen is Mary's best friend.
What will make Mary devalue Elen more? Hearing that Elen likes John (romantically) or hearing that John likes Elen?
Let's assume that Mary and John have been dating for a few months. Mary is a dependent person with low self-esteem who would go to great lengths not to lose her boyfriend. All three of them are around 20 years old.