What does Richard do and what does Kahlan do when the last sister comes and offers Richard the collar?

Richard is refusing Sister Verna's help when Kahlan enters and tells him that if he doesn't put on the collar then his love for her is obviously a lie. Richard is emotionally devastated but puts on the collar. Kahlan makes Sister Verna promise to not let Richard forget how much she loves him. Richard tells Kahlan to go find Zedd and refuses to look at her as he leaves. Kahlan gives him a lock of her hair.