Answer:
IT'S TIME TO PLAY BALLS LICKING
The irony is that they are smiling with “torn and bleeding hearts”.
The idea it emphasizes is that they are smiling to hide their pain.
The overall message revealed by the irony is that they are in considerable emotional turmoil and faking happiness to mask their distress.
OMG I read that book too I had to do that for my homework too!! The answer is: scoot and sully are reunited and await rescue