@Zaryswell hey! Thank you for your comment!
And no this didn't happen to me irl, and it also wasn't inspired by The vow though yes it has been compared quite often lol.
It actually came from a prompt I saw on pinterest. Instantly it made me think of a girl opening some guy's wallet to find a picture of him and her together, but the catch would be that to the girl the guy would be a stranger. Hence came the scene mentioned the story's blurb, and then the rest of the story followed.
And Mathew was the loving, kind, and broken person my teen mind made up to complete the story.