When reading MJ I found it interesting how Katniss reacted when hijacked Peeta flirted with Annie in the dinner hall. To my remembrance she felt like she never existed, which in a way translates to hurt, rejection and embarassment. Backing up the reason that she does indeed love Peeta, and is very unhappy with him flirty with other women.
I also remember Katniss got Jealous in catching fire as well, when Johanna was naked in the elevator, it seems like she wants Peeta all to herself...well I dont blame her.
What do you guys think?