I think there's a huge attraction to the idea of "buddying" because most of us spend our lives with this desire for suicide, which we can't speak of for fear of imprisonment. It's the attraction of feeling like we've finally found another person who also understands this thing we've been persecuted for, and forced to keep secret. It creates the idea of an intimacy, being able to share with someone the thing we have to hide from everybody else. The attraction of sharing a secret understanding with someone.
That's one reason I love the idea of a long cruise. Heading far out to sea for a few days. Being surrounded by all those happy shiny people who just want fun, being the only two on board who know what we're going to do. Smirking at each other, pretending to be like everybody else.
It's my favorite suicide fantasy, in fact I think the "smirking" might be my favorite part.
But I don't think I'd really have the guts for a jump, not even one into a beautiful sea with a smirking partner; the body naturally struggles against trauma (though it probably would not struggle for very long, ha ha).