I think they may have just decided to split or take a break from the relationship because they’re both too busy with their own things. And that explains why they still follow eachother, like photos and he’s still getting along with her friends. Probably a chance they’ll get back together, esp for over Christmas where she wants to have someone around. He’s also just moved to London and is getting to experience that whole lifestyle. She probably expected him to drive down to Brighton every weekend to be with her and I don’t blame him if he said he wasn’t up for that.