It’s just another attempt for him to say “look how lucky you are to have me” - maybe she thinks she is, maybe he’s not the person he comes across as on social media but I doubt it. I’ve seen lots of posts from him basically saying how he’s so amazing to her and in a nutshell she’s weak - how she was downtrodden when he met her, how she lacks self esteem, how she’s struggled over the last year but I don’t recall any posts from him saying all the things she’s good at? Maybe he should compliment her more, especially about things that aren’t related to working out or weighing your food out to 0.1 of a gram!