So I [19M] met my current gf [18] a few months ago and she told me she'd never drank a can of monster. I told her it was great, and I know she has a massive sweet tooth so she tried it and really liked it. We drink it together sometimes but she's recently been drinking it while studying and then also randomly sometimes too. I'm kinda worried that she's gonna drink too much and it's gonna affect her health and sleep. She told me tonight I shouldn't drink it because it was kinda late and she thought the caffeine would keep me awake, and then said she might have one tomorrow. I told her she shouldn't drink too much of it, and then she called me a hypocrite since I drink it way more often than she does. So, am I the asshole?