Context: He lowered the sheet to chin level and gave Sam a sour look . " I ' m perfectly fine , Sam , " he uttered through gritted teeth , trying not to give Sam a glimpse of the cursed gap . Just dying of a broken heart , that 's all . Not that you care a whit .

Question: Why may the narrator feel upset ?
Options:
0. None of the above choices .
1. Sam has just announced that he is moving away
2. Sam has just proposed marriage to him
3. He knows Sam does not feel the same way about him
Answer: 3