I've been thinking that maybe the Dean treats Britta the way he does because he's trying to copy Jeff's behaviour, what do you think? I love the Dean but I just... rolled my eyes at him aggressively throughout the latest Community episode because come ON, what has Britta ever done to him to deserve all that resentment?
I can absolutely see that.
I think it might also be jealousy, because he knows that Jeff had a thing for her for a while, and she and Jeff were friends with benefist for a while, and now even though she and Jeff aren’t a couple by any means, they do have a very close friendship. Even though Jeff can be a douche to her, they’re still pretty close.
It’s possible it’s also a combination of the two. Or something else entirely!