Not baby enough?

I know this sounds super odd. I’m also just as confused by it so I thought why not try and get some other people’s input. But the other day I was hanging out with my boyfriend and we were just talking and he said i’m “not baby enough”. I asked if that’s a good thing or a bad thing? He said that’s for me to figure out. It’s just such a confusing statement and no matter what I can’t seem to think of anything that would make that make sense.

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For a bit more context, even though it didn’t help much he does call me a baby a lot. I tend to be super emotional about things and overall really sensitive. I’m also short compared to him so with all those factors combined he always says things like “you’re just a baby”. Never in a bad way or anything, he normally says it in an endearing tone. But anyways in that conversation he said and I quote “You’re a baby, you’re just not baby enough” which even now leaves me confused.
Not baby enough?
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