An image: A lot of times when T'Challa is sitting on his throne, looking over important documents? He rarely says it, but he luuuurves it when his wife comes & randomly plops down on his lap just to snuggle as he works. -SQUEE!!-
T’Challa might not say that he likes it but he makes it known. He’s not interested in hiding how he feels about it.
Because she knows T’Challa likes it she does it even more.
It’s their unspoken favorite past time.