Okay, guys. Here's the situation. I have a friend who I really care about. I mean, I love him. The problem is his life has sucked. He's out of the worst of it, but it's sort of shaped him into a really troubled young man. He claims that he hates life, and he's learned to accept that he'll never enjoy life. Try as I might, I can't shake him of this. The problem is that, though I know I can't abandon him, his pessimism is toxic for me. Just as I'm feeling happy, I'll talk to him and go away feeling horrible. How can I be a positive influence for this guy without him being a negative influence on me in return?