Effectively it looks like the guy was looking for a suicide-buddy. Initially she told him to get help, but he kept pestering her about wanting to commit suicide. So she helped him through it in a non-material way. That's one interpretation, and there's nothing criminal about that. Just a poor decision from the judge here.
Reminiscent of a case from years ago where roommates secretly filmed a roommate having a gay encounter, and the roommate killed himself on finding out. I don't get how a person committing suicide in a non-intoxicated state is anybody's fault but their own.
I guess you could argue if you find a drunk person and tell them to do something reckless, but none of these cases seem to fit that.