Tonks gets angry after the death in hbp and only one person can calm her down. SPOLIERS FROM HALF BLOOD PRINCE. Yes i know my spelling and gammer is bad i've kept to the rules and run spellcheak and gammer over and it's all come back ok.
Tonks has a flash black to being a child when Sirius's, James, Remus and Peter helped Tonks a chat with Remus brings them closer together