Context: But despite the logic his teacher attempted to bring into the matter , and even after her parents urged Miyagi to move on and forget about her -- he never did . After her death , he began building up a wall between himself and others . He viewed the world in complete indifference , going with the flow of things . His marriage was brief and unsuccessful , it resulted in a divorce when his wife cheated on him and left him . After the break - up , she confesses to Miyagi that she truly had loved him .

Question: What may have caused him to build up a wall between himself and others ?
Options:
0. He had unresolved trauma with his parents .
1. His wife cheated on him .
2. None of the above choices .
3. He had unresolved trauma .
Answer: 3