View attachment 1054326
I doubt they actually interacted like that. Derek probably would've mentioned it to MC when he's depressed in ep6. BUT. I do buy Ashley seeing him do his sneaky sneaky, they don't interact, but she's overwhelmed by her feelings again.
I rewatched the bit where MC interacts with Elena/Ashley, and it does seem likely that she's crying because of Derek now. Elena doesn't seem the type to take part in Quinn's restraunt, and if Ashley was crying because of Burke or restraunt stuff, it would be one of Quinn's girls with her, to make sure she doesn't blurt anything to anyone not in the know.
There is one thing that throws a wrench in that, though. Its implied the phones weren't being picked up because Elena was dealing with Ashley. Which means Ashley was broken down crying well before the DIKs got to the prep house. Before Derek and MC broke in.
So... I dunno. Could be set-up for some other problem that will come up, and Burke/Derek are misdirections.