calloused

You always wonder, 'What could I have done differently?' But there's also the healthier part that says, 'You integrate it, and you get on.' You never get over it, you just get used to it. You get calloused, a little bit harder maybe, so be on guard for that. But take these tragic things and turn them into something meaningful and worthy of the loss. Make it count. From here on out, do the best you can to make it count."

Mark Ruffalo