Dude No 1 whilst I respect the Lady´s opinion - DO NOT FOLLOW HER ADVICE!!!!!!
The likely hood is that if you follow this advice, YES you will get back together for a time! Its not what you want though. Im sure you feel right now that anytime you have together is better than the pain of being apart but I promise you in the long run its better to cut ties now and deal with the pain than to drag it out.
I dont think fucking 10 other girls will ease your pain (Ask style) but it might be fun
The only real healer is TIME.
The problem with taking your attention off this chick and letting her find out your social value is high by pulling girls infront of her friends etc is that girls have a hardwired need to promote emotional dependency in guys. As long as its not an unhealthy psycho obssesion, whenever a guy whome a girl has had a special connection with loses interest she automatically regains her own interest and makes moves to re-ignite your feelings for her. Its an ego thing but she cant always help it! Once your hooked again she will lose all feeling towards you once again!
I have been there, I have talked to a lot of girls about this! Some do it consciously some sub-con but the fact is the same. Once you remove the love and she sees you have higher value she will want you back but that does not mean she wants YOU!
She had her chance, grieve, deal with it........go practice having fun with all your PUA skills and just think NEXT