Will being indifferent get you more girls? Yes.
This isn't something that I've seen.
I got laid a little while ago and went out by myself to a bar with the intention of leaving by myself..just went for a drink and to people watch/watch their reaction. No changes observed...at all.
They are already indifferent. And so am I. Just like two of the same polarity cannot create a current. (positive/negative charge). Indifference is just a feel good about yourself thing as far as I have seen.
Women at their peak don't give a fuck about how indifferent you are.
Try different environments then.
You're a kid still, so it could just be that those particular broads perceived no value in you. One example does not make proof.