Why did my guy friend also my crush pick me up and carry me and say “you’re so light”?

Me and my guy friend/crush were talking after school then I said you gotta go your bus is gonna leave soon ans I wrapped my arms around his neck and he reached his arm around my lower back and I thought he was gonna like squish my butt or sum but instead he picked me up and carried me and stated you’re so light why and what does this mean or am I thinking too into it
Why did my guy friend also my crush pick me up and carry me and say “you’re so light”?
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