What is the problem in the Hunger Games (from Katnisses point of view)

Sitting doing our interviews Peeta just pledge his love for me in front of the entire Capitol. "I've liked her since that first day in school" he explains to the audience. I never knew he liked me. I never notice him back in district twelve paying any special attention to me. But now all I can think about is Gale back at home watching this. My mother, Prim. What would they think of him loving me? How can I kill him in the arena to save my life? All I know is that I don't need this kind of stress entering the Games in the next few days.