Dumbass she was trying to get him to do the surgery so he wouldn't die! He had some sort of condition but didn't want the surgery done. She's pretty much saying that she'll do anything for him to keep going, hence the "I'll never write a song won't even sing along."
Yes, I'm certain that if the occasion called for it, she would make not just a good but an excellent actress and blow your fave out of the water. This, however, is not such an occasion. Now get your pressed ass outta here.
To hear so many singing your song about your father....not to mention hearing it all in Paris!! 
