Misnamed by his daughters name?

My boyfriend of 2 years calls me the wrong name sometimes. I remember he called me his ex wife’s name almost 1year ago but I didn’t get too mad cause we were talking about her (they have a kid together) not long after that happened. But more recently he stumbles on my name and calls me his daughter’s name sometimes but I’ve noticed he has started doing it a lot more lately. Should I be worried?

Misnamed by his daughters name?
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