While I understand your point, I think it’s unwise to read too much into the language very close people may use. I have forever called my wife “Gorda” which is “Chubby” in English even thought she is not and has never been chubby, it’s a nickname she loves.

Same with my son and daughter, we have all sorts of pet names and inside joke language which won’t be understood by anyone outside of our circle without explanation.

Ultimately, language is no different from physical contact… I rough house my grown kid to show him love (and probably to see if I still have it hahahaha) but I’d never dare do that at work (very on the nose example, but you get my point I hope)