My boyfriend just came out to me as An adult baby. What to do? Is this normal?

I am 26. My boyfriend of 3 years apparently just mustered up the courage to come out to me as an adult baby. Abdl.. if you don’t know what that is, through my minimal research I have discovered that it’s a group of people who basically like to live and act like babies.. I find it. Sry weird, but at the same time kind of cute and endearing.. anyone have experience with this or anything. I’ve done minimal research, but am kinda confused and experiencing a ton of emotion..
My boyfriend just came out to me as An adult baby. What to do? Is this normal?
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