Kevin quickly forgets about the "ghost" and goes to follow Kathleen.  "Hey, you shouldn't go al-" he stopped abruptly.  What was he saying.  He sure as shit didn't want to go with her, and she wanted to be by herself, just like he did.  He reasoned out his dislike of people just long enough to say, "We should take at least one person with us.  That way, if something happens to them, we can get them out safely."  He didn't like the people, but that didn't mean he wanted them to die.  He'd be just fine by himself.  To him, he was a Marine, and therefore worth at least five of them.  He stood there, not really wanting to go anywhere.  This room was nice and big, and he liked that.