It hurts less when you don't care

"It hurts less when you don't care" - Robert Chase from Doctor House

It's pessimistic, but I kind of live by this advice. He was talking about how he decided to intentionally hate his father so he wouldn't feel bad for being let down, and also for eventually losing him. Many of us have done the same, stop caring about someone we love to prevent getting hurt. There might be a better approach to this, but until then...