Me:
In the first book, when Katniss hugs Peeta, and she felt a security that has never felt before, she feels protected and warm. For me it's one of my favorite parts, besides all part of the cave.

In the second: Several, the picnic day together that last day so wonderful and Peeta followed by saying, "I wish I could freeze this moment and live in it forever", the nights on the train, and the way Peet tells her he has no life without her, that she is his whole life... that hole part and that KISS in the beach.

And the third when she is talking to Finnick and he tells her that she is in love of Peeta, that maybe she doesn't know yet, but she loves him more than anything.