A debate about the movie Titanic.

Hello people, I had a small argument with my friend about the movie Titanic  and I'd just like to see what other people feel about the debate.  
 
Ok, so at the end of Titanic, Jack and Rose make it out of the ship, and they get to a floating piece of wall in the freezing water. Rose gets on top of the wall, and she's hanging onto Jack. The wall can only support one person. Now Rose can either let go of Jack and get to safety, or stay with him and die together. In the movie, she ends up letting go.  
 
Now my question is: Was Rose a bad person for doing this? 
 
My friend is convinced that Rose should've died with Jack and by "letting him die" she pretty much murdered him. I say that she did the right thing because a) he was screwed anyway and b) killing herself would've been extremely foolish and would not have made a good ending.  
 
Your thoughts?

it all depends. 
 
if you truly love someone then you should be willing to go down with them. (My Opinion)

Spoiler alert!

she did the right thing
thats what Jack wanted,he knew he was screwed anyway,so he wanted that ,at least, Rose could live
Rose choicing to die would be the selfish choice,not only she would negate Jack's last wish,she would be using death as a way to not mourn over Jack's death

" she did the right thing thats what Jack wanted,he knew he was screwed anyway,so he wanted that ,at least, Rose could live "

that door could have well have supported him aswell 
she was being greedy 
also 

if everyone died the movie would suck

She just did what Jack wanted her to.

My friend is convinced that Rose should've died with Jack and by "letting him die" she pretty much murdered him.

I don't think she was bad.  She was respecting Jack's "last wishes".  I'm sure he wasn't planning on dying (even though he probably knew it was likely), but he wanted her to be safe even if he did.  And the only reason she let go of him was because he was dead.  Holding onto a dead body wasn't exactly going to "prove her love".  He asked for her to find a way to live and she did....because she loved him!
Goodness...people just have to make these good movies so complicated in meaning...

I don't really remember, but wasn't he dead when she let go?

Kate Winslet is ugly.
 
On topic, couldn't they have both switched in and out and taken shifts on top of the floating debris?