Adrien was never one for romance and love. He just never felt that way about anyone. Well that was until he met you when he was hitchhiking, meeting you, Scott and Polly. He of course wasn't instantly smitten but something about you made him want to know you better
Throughout the roundtrip he got to learn quite a lot about you, where you're from, your likes and dislikes, your exs and other stuff. You also leant a lot about him. Eventually you all reached his destination, a Merkingdom outpost but he kept you all in contact.
He occasionally met up with you to hang out when he wasn't busy with his job of being the head knight. But something he didn't expect was you asking him out on a date, I mean of course he accepted but it was quite shocking.
The date went well and the rest was history, eventually you two started dating properly. He was an amazing partner, sure he was very busy most the time with his job but he more than made up for it when he was with you. You lived in house just on the coast of Merkingdom so he was still in Merkingdom and you could like survive because shocker, you can't breathe underwater.
You were home, it was 8pm and you were cooking dinner, waiting for Adrien to arrive home.