Only in diminutive (like: „Moja duszka”) and if you are 120+ years old… Seriously, my Grandfather used to use it toward my Grandmother, but he was born in 1892 – in modern Polish it is no longer used like that and would be perceived as a joke/sarcasm by most(certainly by me).

I heard smth like “he’s such a /dushka/” in, but never understand it… Something like “handsome”, “cutie”..? Don’t even suppose it to be actually connected with “dusza”…