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.
i would ask him to write what he wants down if he knows how to write English, but if not i would try to teach him a few easy words to help me understand him.
D. Inconsiderate. Past girlfriends had previously called him "insensitive" which means that his word/actions can also be considered as a lack of sensitiveness or understanding.