I read recently in a book called "How to get past, what you'll never get over" that we become emotionally callused alot like skin. I think your emotional indifference is probably just your mind learning to protect itself from regularly being hurt.
M: 43 W: 43 Married 6 yrs. T: 7 yrs. Son 20, 18, 17, 15 yrs. (w/ Autism), 12, 10