there isn't really.. we just used nicknames from our given name. maybe add -chan at the end. i've heard some people use baby and darling (the literal english words but just with japanese pronunciation), but.. no one really uses it.
How do you pronounce it tho I wanna hear it
bebi/beibee (baby) and daarin (darling)
oh oops meant to reply to you. bebi/beibee (baby) and daarin (darling).
what is babe in japanese? like idk if japanese use pet name for their significant other. i only know anata, but usually for married women to call their husband. other than that, idk if they have something like korean; jagi, yeobo or anything.