Move on then. If she doesn’t want you, you don’t need her. Get over it and move on.
Wingmen are supposed to distract obstacles (friends) so you can go in for the kill on your target.
If you’re alone and you’re approaching a 2 set, you’ll have to keep both of them interested, but pay more attention to the obstacle than your target, so then later on you can say “Oh, I haven’t really been paying attention to your friend, so I’m gonna borrow her for a few minutes, okay?”
Now you got your 1 on 1, play your cards right, blahblahblah, BAM! bed.
yap.