It ended terribly! I was so pissed off at the ending, it like...it completely defeated the point of the entire series. And I have no idea how people like Gale.
FOR ANYONE READING THIS THERE ARE HUGE HUNGER GAME SPOILER ALERTS IN THIS COMMENT DO NOT READ IF YOU DON'T WANNA KNOW!
For one, she really only thought of him as like, a brother or her best friend. He really just randomly sprung the, "I love you" thing on her and then it confused her feelings for Peeta and her friendship feelings for Gale. When you get close to someone, friendship or not, and they suddenly tell you that they love you, you start to question if you love them too because, in a way, you do love them. You care about them, but those feelings can be very muddled.
For ANOTHER, it was one of Gale's like, bomb things that killed her sister! It was his fault :/
And then to add onto that, when she went into depression mode and moved into the, what's it called, the Victor Village? He completely ignored her and just abandoned her but Peeta came back and helped pull her back together again. I'm sorry, but Peeta is just...I don't know, he's so much better for her than Gale.