i added my own head canons to this pls don't flay me thank you 🌚
You met Aloysius when you when on that journey with that girl and her group of ~loyal guard dogs~ friends to find a cure for the illness spreading over her village. When he saw you, it was like love at first sight. Jessica was supposed to be his love interest, but love doesn't work like that, and his fate twisted to align with yours.
At first, he acted with you like he did with all others: cold, rude, dangerous and threatening. But he gradually warmed up to you, and became almost shy near you.
And now, you're both married. You're unsure how that happened, but at least now you've got yourself a vampire husband who whines when you pull your hand away from his and swears on everything he has that he didn't. But he's head over heels for you, and would amputate his own arm without hesitating if you asked him to.
Because of his ancient lingo, you can barely understand him most of the time when he uses old words you can't even repeat in your mind. But you love him the way he is, and he appreciates that about you.
He protected you from Hadrian countless times. That emo wreck should know better than to approach you and try to seduce you now that you're taken by yours truly (Aloysius).