Ianto had not reacted , save for a single look in his direction . But inside , he wondered why Owen had asked that ; if it had been Ianto 's choice , he would be doing the exact same thing . How was it possible to feel so close to someone and yet be so far away ?

Choose your answer from: I. Because no one is good enough for them . II. Because they do n't have any desire to . III. Because of people who have hurt you in the past . IV. Because they do n't need anyone else .
Q: What may be the reason for not allowing yourself to be close to someone ?
III.