Yeah… it pretty much made no sense whatsoever and involved him walking away right into the shower, so it wasn’t the most epic goodbye ever. That being said, Reagan later called Nick from the airport, wanting to tell him how much she likes him, but ended up chickening out and just repeating, “Sayonara Sammy” to him.
But I don’t look at this as a missed opportunity. If anything, I think it offers up hope that things aren’t over between the two of them. They may not have been able to say what they were feeling out loud, but, in a way, this “Sayonara Sammy” thing is kinda like a masked representation of those feelings. For the life of me, I can’t tell you who the heck Sammy is, but I do know that this sayonara isn’t forever.