You: I enjoyed our date tonight. Thanks for going out with me again. :)
Her: I had fun too. Thanks for dinner!
You: There's a concert I want to go to next weekend. I'd love for you to go with me if you don't have plans.
Her: Yes! I saw a flyer for that. I really want to go to.
You: It's a date then! Pick you up at 7?
Her: Sounds good. I like these dates we've been having.
You: Me too. A lot actually. You're a special girl.
Her: You ain't so bad yourself. ;)
You: On that note, I've been wanting to ask you something.
Her: Yes?
You: How would you feel about not dating anyone else?
Her: I'm not dating anyone else!
You: Yeah, I know. What I mean is...would you like to be my girlfriend and date only me?
Her: I would like that very much. =)
You: :)
Her: So, I guess we're officially a couple, huh?
You: I guess so! Good night, my girlfriend! Sweet dreams!
Her: Night, boyfriend!