How do you rebuild intimacy in a relationship that has gone cold?

You remember when it was easy — when closeness didn't require effort — and now you're sitting across from someone you chose and wondering how you got so far away from each other.

Distance in a relationship rarely announces itself. It just accumulates, quietly, until one day you realize you've both stopped reaching.

Have you ever found your way back to someone after things went cold — what broke the distance, and what do you wish you had done sooner?