When Alex woke up he saw a lil homeless lady looking down at him. He was back in his own bed. Some of the questions he was probably asking himself were, HOW THE FUCK DID I GET BACK HOME, WHO THE FUCK IS THAT, WHERES MY DRUG DEALER, FUCK.
Then the lil lady jumped off of his bed and said "Hello, my name is Ree, and Ima live here now." Before she crawled into Alex's closet.
Alex really didn't question it at this point and called Natalie to tell her about his new roommate.