Yes, it was obviously painfully apparent that Brian had been neglecting his own well-being. The problem was that Vlad didn't know how to help a man he'd never met, not to mention a man he couldn't ever meet. If Brian put the pieces together somehow and recognized him, even faintly... it would be a disaster. He wanted to help Max, but not at the cost of his own life. He didn't have an answer because he couldn't pretend to understand the complexities of the human mind, and it took a moment of consideration before he spoke again. "Have you tried... communicating with him? Through notes or letters, I mean. If you two could come to some sort of understanding..." The idea sounded weak even to his own ears, and he trailed off in frustration. "Or at least try to convince him that there's no need for him to act the way he is."
The truth of Max's words couldn't really be denied, but he still hesitated to just leave. "I cannot just leave you here like this." Vlad was a lot of things, and in many opinions he was probably a pathetic excuse for a human being, but he wasn't going to just abandon his friend in some dark alley and let him continue this downward spiral on his own.