At the end of Titanic, did Jack have to die?

Dana Marshall and I were talking about director James Cameron throwing some shade on the new Star Wars movie.  I think that James Cameron can absolutely back up his point because two of his movies, Avatar and Titanic were the two highest-grossing films - worldwide - of all time.

However, I cannot get over the fact that that stupid door had enough room for Leonardo DiCaprio's character, Jack.  I think he had enough room and could have found a way to share the door with Rose!

This sparked up some opinions on the KFR Facebook page.  Kristy posted this photo and I think I just made a new best friend:

But then, Tammera disagreed:

She has a good point, but I still believe Jack could have found a way to pull himself up there! :P  What do YOU think?