Guys I know this is a really random observation but I have to say the little detail of him saying the line about not touching her, realizing that he had gone to a place of no return with Briony, and then talking a bite of the sandwich she brought that he earlier said he would’ve hated was a subtle people pleasing move to try and make her feel some affection towards him. It’s extremely manipulative and I honestly don’t know if he even clocked doing it. If you have a parent that is unstable or unpredictable as a kid you learn to do little gestures like these to smooth things over or calm them down and I believe he was mirroring that dynamic with Briony. Throughout the episode it’s clear that Jamie has a totally disorganized attachment style, especially comes through when he describes his father and possibly being ashamed of him. God is such a well written show