What if Mrs. Everdeen had an afair with Mr. Mellark, and Prim is actually Peeta’s half-sister? And that’s why he (Mr. Mellark) was going to keep her stomach full? And that’s why Mrs. Mellark hates Katniss so much. And Mrs. Everdeen never told her husband the truth, and that’s why she get so depressed after he died. And that’s why she keeps running away.