Yes, Chase allows cardholders to combine points with one other cardholder as long as both cardholders are members of the same household. In other words, it doesn’t have to be your spouse or a family member, but you do have to live together. Under those conditions a room mate would certainly qualify.
To combine points, you’ll need the card number of the person you want to combine points with. You used to be able to add the other account via your Chase app or account, but lately it seems you’ll need to contact Chase customer service to get it. It isn’t a long phone call and shouldn’t be a surprise activity for the customer service rep you speak with, as this is a fairly straightforward and common request.
Keep in mind that Chase does not take it well if you try and manipulate the system and can claw back points, cancel cards and even blacklist you from future cards if they think you’ve broken the rules. It’s not a risk worth taking, so stick with combining points with one qualified household member.