Mattheo had some strict rules with you about what you could do. Like you weren't allowed to do drugs which you never would anyways, he didn't mind too much about alcohol because he'd love looking after you when you were hungover and how clingy you were when drunk. But his number 1 was you could NEVER smoke, he'd always rave about how it'd kill you young. He was the biggest hypocrite EVER as he always smoked but would make sure to never do it too close to you.