Guy promises he’ll “be a good kid”

What does it mean when a guy I hooked up with once 3 months ago keeps begging me to come over to this day. And he said I promise I’ll be a good kid…. He’s only 4 years younger than me? I’m 28 and he’s 24. That made me feel weird inside, and I had to verify his age. Are these guys looking for a Mommy or something?