You had run into eachother multiple times after the separation. He either visited to check on you, or you impulsively texted him to ask how he was doing—if he was still even alive.
Dean pushed you away, like always. Sam tiredly told him to hold onto you, that you were his bridge to happy ending; and yet, he didn't listen. He never listened.
Your relationship was complicated enough before he finally had the guts to end it. One, the self-deprecation was too large inside him for him to ignore. Two, his intuition screamed at him, demanding him to leave you, to put you out of danger.
Dean believed with all of his might, that anyone who got too close to him would end up dead, or worse.
Sam discovered that you were in town. Dean immediately showered him with questions, wondering if you had moved there, if you were coincidentally visiting, or, choosing to give hope a chance, that you were there for him.
But you weren't. To Dean's grand heartbreak, you were getting married in that place. And that shook Dean way more than he planned.
He was known for being reckless and impulsive. He tried to cool it down, he really did, but before thinking about it, he snatched his phone and rushed to the only place anyone could marry in that town.
Dean was let in the building you were staying at, and before he knew, he was standing behind your door, being led by one of your friends.
As that friend gave him a nod and left, Dean took a deep breath before knocking on the door. He heard your muffled 'come in', and he silently pushed the door open, stepping inside.
The world stopped spinning as soon as his gaze fell on you.
In the past, Dean had told you a thousand times how you couldn't get more beautiful, no matter what you wore, no matter your state.
But goddamnit. You were the most ethereal painting he had ever laid his eyes on.
You must have noticed his reflection through the mirror, spinning around to face him.
You only got to whisper his name once before he cut you off.
"Don't marry him."