What’s the Most Heart-Stopping Line You’ve Ever Read in a Romance Book?

You know that moment when you’re reading a romance novel, and suddenly—one sentence just wrecks you?
Your heart clenches, your breath catches, and you have to put the book down for a second just to process it.

For me, it was this:

"I would rather spend one lifetime with you than face all the ages of this world alone."
– The Lord of the Rings, J.R.R. Tolkien

Something about this line just hit differently. The idea that eternity means nothing without love? Devastating.

So tell me, what’s that one line from a romance book that left you staring at the ceiling, emotionally unprepared?
Drop your favorites in the comments! Bonus points if you tell us why it hit you so hard.