I'm not sure I get all the hate for the guy. He's obviously young, hurt, and confused.
Nobody loves you that fast, so you need to work on your definitions there. And how much alcohol was fueling this? It doesn't sound like the foundation of a real loving relationship.
I think that we grow up in the cult with messed up ideas of how relationships work, what love is, heck we don't even get to know ourselves so how can we know others. The only good thing I got out of the cult is my wife, but only because we had the right attitude toward our relationship and worked really hard at it. It hasn't always been good or healthy but we got there over time.
Take time. You don't have to rush anything. Read books and expand your perspectives on life and relationships.