Am I missing something?

I know I’m not the most “advanced” Casanova, far from it but, you know, I’ve heard thing, I read Karl. Still, the order and nature of these events surprised me.

Where: Starbucks on Mt-Royal. Around 6pm. Sober people.

• Hottt woman in tight jeans and white top comes in with hipster type guy with 70s winter jacket, Elvis glasses and tatoo on the elbow.
• While waiting for a second sofa to free up she slides a chair close to his but mostly sits on his knee. Kissing.
• Random discussions, I’m not paying attention but they’re speaking pretty loudly.
• She get the other sofa.
• Guy: Wanna go back to my place and shag? Girl: Sure!
• They stay and keep talking.
• Guy: Ok, gotta go. Time for a quicky? Girl: No, no quickies though.

  This is where I don’t get the order of events.

• A few minutes later, girl pulls out her cell, asks the guy: So, what’s your phone number?
• Me: whaaa?? (in my head but it almost wasn’t)
• A few more minutes, they get up, start necking like mad standing in the middle of the place. Walk out.