Cho Chang needs to get over Cedric Diggory. He didn't love her and was graduating in a year and they'd most likely wouldn't have lasted. Besides, he was in it for the sex. So Cho, stop whining about your dead boyfriend, suck it up, and move on. You don't necessarily have to hook up with Harry, 'cause lets face it, he's so far in the closet, even Dumbledore is telling him to come out. I mean seriously! I don't know how Harry couldn't be gay. He was so obsessed with Draco in sixth year it was disgusting (translation: hot). Yes, Draco was conspiring to kill Dumbledore (and failed*) and yes, Draco was acting suspicious (and failed), but if you had read/seen the bathroom battle scene! God damn! That could've gone two ways. Luckily for all you Harry/Ginny shippers out there (sorry Harmonians, HBP is where Ron/Hermione is set), it stayed on the path of heterosexual-ness. For all you plebians out there: he's not gay. "But wait!", thousands of slashfans cry out. "Yes, Harry marries Ginny but he can always leave her!"
God I hope so. The relationship between them seems so forced, I'm surprised Harry didn't tell Ginny to lie back and think of the Ministry. (That's funny and you know it.) I mean Ginny stalked him for the first two/three years of her schooling and suddenly stopped. I never believed for one minute that she stopped liking him. Yea, she became a bit of a slut, but come on, it was all in the name of the Plot! So, sixth year rolls around and Harry finds himself questioning his feelings about her, "Do I make a move and risk Harry Jr. being cursed off by my best friend? Or continue letting her be a slut? Hmm, conundrum."
Anyway, around the end of the year, about the time that Harry throws caution to the wind and breaks all the rules, he kills slices Draco's chest open because he's a jealous that Draco's a GQMF Harry's a paranoid douchebag (all for the right reasons) and as his punishment, he gets kicked of the Quidditch team. Wait, what? THAT'S IT. Harry performs an unknown spell that was written in his potions book (sound familiar) and seriously injures Pretty Boy Draco and all he gets is a slap on the wrist and kicked off the school's sports team? Wow JKR, way to favour the jock. If that had been anyone else (Ron, Seamus, Neville[lolyearight]) they would've been expelled faster than you could say, "Accio Doublestuf!"
Whatever, I guess we need to keep Harry around for the seventh book so he won't become a boarding school drop out (PFFF).

*Snape had to do it. Snape. For realsies Draco?