alright your talking to a girl with a boy friend
Chappo: I hope your boyfriend doesn't get mad that you're talking to me.
HB: no it's no big deal i do what i want.
Chappo: you know, we should double sometime!
Here there are two things she might say.

a) oh do you have a girlfriend?
b) ya we really should

a)
HB:oh do you have a girlfriend?
Chappo: no i don't. so do you think your boyfriend can find a date so he can come with us and not feel awkward, otherwise it'll just be you and me.

b)
HB: ya we really should
Chappo: alright so it'll be me and you, and your boyfriend can bring some girl that he finds.

after that exchange she'll be kinda confused
HB: wait what?
Chappo: what? you thought i was gonna let you go with your boyfriend? you spend way too much time with him as it is.

after this she could go a number of different ways so just wing it from what she says. it might not work but it's a step in the right direction.
only been field tested once but it's a winner and winners do what they want. try it out and let me know how it goes.

_________________
Anyone can give up. It's the easiest thing in the world. To hold it together as you walk through this hell, when everyone else would understand if you fell to your demons, that is true strength.

I got crash and burn badly......@@
she just say haha and walk away@@

sorry bro it worked for me. at least you got the idea into her head though

_________________
Anyone can give up. It's the easiest thing in the world. To hold it together as you walk through this hell, when everyone else would understand if you fell to your demons, that is true strength.