He's addicted to that shit

Your found Tomura always with a Monster can in his hands..no matter what, he'd have it.

Work? He had it. Making plans? He had it. Free time? He had it. He was really obsessed with those drinks. Which could lead him into some stomach or just health issues.

Now, you two are in the LOV room, sitting on bar, holding hands (he had gloves), and he had that can in his left hand..