Did you read TFA? It says they were both subletters and were not on the same lease. He wasn't a landlord, he wasn't on the hook for Ulbrich's half of the rent.

Did you read TFA? It says they were both subletters and were not on the same lease. He wasn't a landlord, he wasn't on the hook for Ulbrich's half of the rent. He wanted a friend, not a tool for a roommate.