^^Guys, perhaps putting that in spoiler writing would be great next time around. My best explanation for the above is that *Binggrae had not yet decided his sexual identity prior to being college-age. Some people call that being "bicurious," but I'm not sure if I would apply that term here. I think Binggrae was more or less confused at how close he felt to Trash and how his response to that closeness was. So, when he experiences that with DieDie, it confuses him further because perhaps he thought he wouldn't experience that with anyone else but Trash. That's why he looks for "confirmation."*
However, my issue with the writers concerning this is not who * Binggrae ends up with so much as how it was done. If the writers had put more of Binggrae's story throughout the drama instead of in the last few episodes, I don't think it would feel like as much of a cop out by the writers. I do like DieDie, and I think that those two are cute together. (That doesn't mean that I'm not devastated for Joon Hee; writer-nim, if it's not Binggrae, then you've got some explaining to do about that red car's occupant!) *
Overall, I liked the episode, even if all the ships are sunk. I was never very good at Battleship.