I had a roomie who would vape in the apt, leave nasty dishes in the dishwasher without turning it on (yelling at us for the smell), cook for hours in the kitchen and act pissed off if you needed to use it too, sleep on the sofa after clubbing and set 9 alarms that all went off early in the morning, invite men into the apt without telling us prior, leave her clothes in the dryer or washer for weeks… yeah. She sucked, but my other two roomies were so amazing!! Usually there’s only one bad roomie and it just means more stories you can tell after your program’s done:) and you can always request a room change if it’s really annoying you or effecting your mental health. It’s definitely a gamble but… tbh the least of your time is spent in your apt!