They're both 20 and have been together for just under a year. The relationship was very intense to the point that they have practically been living together for most of the time (he has a room in a house but spends 6 out of 7 nights at her shared flat).
The reason he broke up with her is that she is incredibly possessive, eg he has had to drop all but one of his Uni friends because she felt threatened by them wanting to spend time with him. He wasn't allowed out for a night out without her, except for very rare occasions when she chose what he could and couldn't wear.
So anyway, he finally finished with her this morning and is really sad. Obviously it was his choice but it's still hard for him as well.
Any wise advice as to what I can say/do to help? He's 200 miles away, and as he's drifted away from his friends there, I suspect he's just sitting in his room brooding