Him scrapping off the top of her brownie is a sure sign of disordered eating. I used to do that kind of stuff because I was denying myself food but obviously bloody starving. I’d try and do things that people wouldn’t notice. I once ate all the raisins out of a box of fruit and nut, then convinced my boyfriend it must’ve been a faulty box . Normal behaviour would be to just have a bowl of cereal. Normal behaviour for Matt would be, I’ve eaten your brownie so bought you a new one or I couldn’t resist so I cut it in half and had half. Sneaking a bit off the top, is not normal.