i have issues with the roommates all the time. they are hopelessly glitched. in my most recent play, i had one that just kept disappearing. one roommate worked fine but the other just vanished and their bed was no longer claimed. and i have had the problem you have described above as well. more than enough beds, bathrooms, food for everyone, but they still cant seem to solve their needs. i really hope they iron it out because i like the roommate feature for making hotels and bed and breakfast type lots