Is it a sin to sarge another pua friend's target if he obviously isn't doing the work to get her?

I was at a club, and my friend pua  (not a wingman) brought this hot asian model hb9. I didn't know she came with him at first, and I was sarging her unconsciously anyway. Then came the kino.

 "I see you kino escalating over there! you better watch it!" half-jokingly, he said.

I swore to him I wasn't doing it on purpose. But then ofcourse, the more he made me ignore her, the more she wanted me. The more she kino'd me. The more she fucking chased me.

One point I was sitting with her, and jokingly I grab her hand, smile evil-like and make my friend watch ( I wasn't doing anything to her, I literally just grabbed her hand and held it in the air.

"Hey! I'm watching you!" half-jokingly, again. I laugh, some of the other guys laugh too.

Then I say:

Me: HB9 I can't hang out with you anymore! Stop following me!

Her: Aw!!!

And I scampered off, laughing. Then I realized how playful I was being, and it didn't help.

So the whole night, this hb9 was after me. I felt liek she was a little puppy following her master or something. I seriously just started leaving her alone. She was getting antsy, my friend was getting pissed but hiding it real well. All this time he wasn't doing anything to her. I saw no escalated kino between them.

Later I asked him if I could borrow her as a pivot to go meet girls on the dance floor. He said "Sure..." I saw her talking to some guy who was like, interviewing her or something. I grabbed her hand and told her she's going to help me find some girls.

We went to the dance floor. Kino'd. Left her and found 2 other hot girls to dance with.

The night went on. I was getting pissed because my friend was doing jackshit.




Days later I found out my friend never managed to do anything with the girl and he stopped calling her. Nothing happened between them!!!!

Should I have gotten her number in secret and contacted her later? I feel like it was partially my fault that I didn't get her number anyway. She wanted me. Models seem like the easiest targets. I didn't use any routines, just stories.

Opinions?