I deal with peoples emotional issues all the time, and it gets me nowhere... and usually if people can be pushed down that far, it has to do with underlying issues about how they view the world, not a given situation. People need to figure out things for themselves, the only thing you can do is keep them from doing anything stupid before they do.
I've gone out with downright disturbed people... it doesn't make them bad people, but it does make them extremely draining if they never return the favor and comfort you about your life occasionally... love shouldn't be a continually parasitic relationship, it should be symbiotic.