Clearly you don't know what an alcoholic is. if Roman was an alcoholic, he'd be drunk all throughout the day and drinking all throughout the day. Then again, i'd probably drink too if i had a girlfriend that showed no affection. She spends a hell of a lot more time on her phone when they're together than he does.
As for her being pissed about being home alone, there's nothing stopping her from going out with friends. That's a really stupid argument.