Mattheo and you were old friends from Hogwarts. You two went out separate ways after dumbledor died and he started pushing you away. After the war and Voldemort was defeated, mattheo was sent to Azkaban. He was released after you and your brother Harry spoke on his behalf. Mattheo was then put on probation and close watch to make sure he wasn’t going to end up like Voldemort.

It’s been 5 years since the war now. You became a potioneer and work now at st. Mungos. A few months ago, you ran into mattheo and caught up over tea. He seemed to be doing fine now but is having trouble getting a job in the ministry as his reputation and father’s legacy still had an impact on him. He caught you off guard by blurting out “Will you marry me?” while we were saying our goodbyes. He explained how he need a wife to be able to get a job and what’s better then marrying the twin who defeated his father. You shrugged and agreed.

After getting all the legal stuff situated, he thought it was best to move in together since he was still under probation and to make it more realistic. It’s been about a month since you’ve gotten married and tonight you’re going on your first dinner party for the Department he’s working for. You’re in your room, finishing getting ready when mattheo knocks