@bebasim - Wait, it isn't really that complicated. I wasn't sure what exactly you wanted to do, hence all of the choices. In order for a sim to be controllable, they must be a member of your traveling party or your active household.
I think all you really have to do is wait until the term is over and, once back home, use MC > Add Sim > Homeworld > (filter to Uni) on your home lot to add the sim to your active household. Would strongly suggest having Overwatch, ErrorTrap, and Traveler in play though to clean up any duplicate sim data.
It's only tricky while living in a dorm, if you move the bf out and back in again, he may still be an uncontrollable roommate which is not what you want. The problem is that you can't move your own sim off campus in the middle of the term because she will then stand to lose her class schedule and will have to drop out. This is one of those special things about Uni World that one has to be careful with.
In the meantime, until this term is over, you can't exactly force him to study but you can feed and try to take care of him. :)
