This story is strongly connected to Peter鈥檚 denial of Jesus. Instead of denying Jesus three times, he confirms his love three times. Jesus didn鈥檛 just overlook the denial and pretend it didn鈥檛 happen; He had a conversation and brought closure to something that must have been a source of guilt for Peter.
Is there an issue you have left unresolved with someone? The conversation could be difficult, but it would be an act of love to have it.