Y/n: she normally says this to get your attention or when she's mad at you.
Baba/baby: You love this because your her baby and she thinks your the cutest even tho you drive her nuts.
Babe: she always calls you this to show how much she loves you and when she wants attention.
Sexy: when she's uno wink wink and finds you hot or when she's in the mood.
Babyboy: when your acting adorable and do your cute smile showing your braces to get your own way, this makes her fall in love more with you.