What can you do?

What do you do when someone your pretty sure you still care about is making decisions in his life that you think will end up badly for him?

Easy answer. Okay, now add the fact that he will assume you're giving him advice for the wrong reasons?

And what if you're not even sure yourself what your intentions would be in telling him what you think?

You stay silent and realize it's not your life. And I guess you pray for the best.

On a related note, something is bothering me, and I don't know what it is. It could be any one or combination of a few things.