Hi Iam doing some research for a project in film studies. The project is about sad endings?

Questions about The ending of the Last Song (movie)

Do you think the ending of the film was sad?
If yes, what aspects of the ending made it sad?
If no, why was the ending not sad?
Can you relate to sad loss of Ronnies father at the end?
Do you think the music towards the end made the film sad?
Even though, Ronnie lost her father would you consider her reunion with Will made the ending somewhat happier?

Any detail will be helpful towards my project