They're so cute I can't help it. Ha ha.

Billie: *gives look* honey, sweetie, baby, I never said I'd show you that. Very few symbols work on me. Being me and a Hell Knight and all. *nods* oh it is. It so is. Let's go! *grabs hand and starts pulling him off*

That was how I read it anyway. Ha ha. Aww... that sounds like a good day!

Yeah. I may show how Drake originally met Billie eventually because it's kind of just as sweet and explains a lot as to why Drake sees her like a sister too. But how they met has a lot to do with why they're close and why Billie hesitates to introduce him and Sal to others. (Could also possibly be the memory that Kat shows her in the other one.)

Drake: ask her what she dared me one day, you'll laugh.

Billie: it was hilarious, and you even laugh at it!