She can't hate him for coming back. But then, she does for not really coming back, because she longs for the old Peeta. The one the Capitol decimated and replaced. The one she got a glimpse of when he planted the primrose bushes outside her house. The unrecorded moments in the last chapter of Mockingjay. Pre-Epilogue. Give it a chance?

Post-mockingjay. Peeta came back but then disappeared for two years while Katniss stayed. They each dealt with their own demons and found their peace. They've both changed but maybe not so much. So what happens when they see each other again?