The guy’s a mooch. Tell your legitimate roomate that you signed up for only two roomates. You don’t appreciate having another without your ok. You don’t appreciate paying extra utilities and having to share less space (ie: bathroom, living room) without your consent.
I know this guy. He’s always there, super friendly, cleans up after himself reasonably well, you have no real problem with him except for the situation at hand. He’s been doing this for years. He’s ANNOYING. Get rid of him. If you don’t, imagine this going on and on until you are really angry. Now is not the time to be a nice guy.
I agree with the above poster about a little sarcasm relating to "how much do you think a place costs here, how bout finding a place of your own, " etc. If he’s nobodys bosom buddy, why keep him around? Be an asshole for one hour, light a fire under his ass, and in a short time, he’s gone! You might feel bad until that first saturday morning when you can plop down on YOUR couch in YOUR living room, and flip through a few channels on YOUR TV, relaxing in YOUR space. Hell, having roomates is lousy enough.
Just be firm, expect the worst, and you will probably get what you want. Your Tiawanese roomie probably isn’t bothered because the tiawanese a)work all the time and:
b)are used to closed quarters.
do it now!!!