<p>Hope this means the gf and the son now realize there is some merit to his parent’s concern. If not, you could tell them that at the very least, son and his gf should be worried that the levitating roommate could be abducted by the aliens who keep visiting her. ;)</p>
<p>Sounds like the college and the police are at least looking into this, which is good. Hopefully someone is talking to the roommate in addition to the gf. And now that the gf’s mother knows about the situation, the majority of the responsibility for worrying about this is transferred from you to that mother. 
Hooray!</p>