Are Katniss and Peeta they actually in love?

Peeta does love Katniss, and deep down, i think Katniss loves him too, but is afriad to show it because of Gale

Of course they love each other! It obvious with Peeta but Katniss is hard to tell because she trys to hide it. But she really does love him! Peeta isn't sure because of what Haymitch told Katniss to do in the very beggining

I agree with what everyone else has said. :)
Peeta definitely loves Katniss--that's obvious. And I really do believe that Katniss loves him back deep down, but it's hard for her to realize it/admit it because she's been distracted by the rebellion and confused because she loves Gale, too.

No.Peeta loves her,but she loves Gale and he loves her

Yes well eventually at the very end of the 3rd book they get married and have 2 kids a girl and a boy

This is how I read it (I've only seen the first 2 films, not read the book):
Peeta does love Katniss and has for a while. I do think his choice to reveal his crush was semi-tactical though.
Katniss didn't love Peeta originally. She faked it so both of them could survive. However, she begins to fall in love with him, as shown by a lot of her behaviour in Catching Fire (wanting him to survive not her, the way she reacts any time she can't see he's safe)