From IMDB:

Lost star Ian Somerhalder is furious he was slammed as homophobic when he decided his famous gay kiss in The Rules Of Attraction would be his last. The 26-year-old hunk nearly lost a lot of friends as a result of the public reaction to his remark, although he insists his words had been spectacularly misconstrued. He says, "It's not me who can't handle it, it's the audience. Seann William Scott didn't get all of the backlash that I received when he did just the same in American Pie 2. It was completely unjustified - fans and outraged men saying that I was making anti-gay remarks. I wasn't and those very close to me who are gay were visibly upset. I'd never make a disrespectful remark about anyone, especially in public, about one's sexual preference."

Note to Ian Somerhalder's hypothetical gay friends: Listen to his commentary track on the Rules of Attraction CD to hear his take on kissing men in his own words. You may want to save time by having effigies and lighter fluid at the ready.

what does he say, Matt?

Amid 90 minutes of ungrateful whining about nearly everything he was asked to do in the process of filming his role, he gripes about having to kiss a fellow actor using phrases like "there is something inherently wrong." A few quotes from the DVD commentary can be found in Kate P.'s post here, and I think I originally started the discussion here.

Makes me wonder if Ian really did complain about not getting enough lines in "Lost."

He complained about Maggie Grace not getting sufficiently moving mourning scenes after his character's passing. He complained about finding out his character was getting the axe while on vacation. He probably complained in some interview about not getting as many viewers as Desperate Housewives...

So really, the reason his character was killed off is that HE (Ian) has such an unpleasant personality.

Well, that and the fact he was one of the show's three weakest actors (which isn't as bad a slam as it sounds, as it's a show with almost a dozen regular talented veteran performers), and of those three the one whose death would best galvanize the plot in the direction the producers wanted.

Who are you counting as the three? IS, obviously, and I would guess Maggie Grace, but who is the third?

The kid who plays Walt (though he just barely edges out Evangeline Lily).

Really, even of that group Maggie is the only one I'd call bad, the others (Ian included) just aren't good when seen in light of a cast with Terry O'Quinn, Harold Perrineau, and Yunjin Kim.