Many people don't recognize that they're in a rough patch until it's far too late. So as someone who has been there once or twice, I thought I'd share what I've learned. The hallmark of a rough patch is fighting more than you usually do. Or just fighting at all. Or it could be more of an unspoken tension. Sometimes, it's just a feeling of emptiness-like there's a huge gaping whole in the middle of the relationship and neither of you has any idea how to refill it...or even how it got there.