What happens in the epilogue?

Katniss and Peeta end up together with two kids, one girl and one boy. The girl's older the boy is younger, Anyway they're playing in the meadow and Katniss is talking about how they don't know how they're playing on a graveyard. And then she goes on to say something about playing a game, and she says the game is boring and repetitive, but then the ending line is - There are much worse games to play.

The real love thing is because Peeta kind of goes a bit insane so they make up a game called "real or not real?", so sometimes he still gets confused so he asks if Katniss loves him or not, and she says real.