Sorry to hear this. But for sure you don't want someone who doesn't want a relationship or want one with you. We've all had our fair share of that lol.
But I will say that your brother has a point. "Dating" - when your objective is to find a partner - can be a numbers game. The more women you talk to, the greater the likelihood you'll meet one who you click with.
And I dare say, the more women you talk to without an agenda, b/c you're caught up in living your own life, the greater the chances that you'll find someone. The old "it's when you stop looking that they arrive" adage.