Part of me wants to just drop it and begin a life of materialistic, carnal bliss. The other part of me misses God really, really badly.
To be completely fair, those aren't the only two options.
You can't beat having a friend you can telepathically speak to about anything anytime, who also guides and cares for you, never blames you, but is willing to call you out on personal flaws that are getting out of control.
"Never blames you"? Judging by the flavor of Christianity you seem to have been brought up into, you think that God considers homosexual behavior to not only be a choice, but a choice that will land you in Hell. That's not "blaming"? You say later that he "hates the sin". How can he hate what you do, and hold you accountable for it, without "blaming" you?
Which reminds me. Does anyone have a link to a site or news article about the current theory (or proven fact) about how or why people end up gay?
This is not a question you will ever find a simple answer to, because it is not a simple thing. You'll find all kinds of theories, some more evidenced than others, but human sexuality is complicated enough that there is no straightforward answer. It's like asking what makes people like a certain kind of food or humor or ice cream, except a thousand times more complex/inconceivable. The best you can probably do is assume the entire person's life, and probably some of their genome, plays some role, somehow. You're not going to find a "gay gene", or find out that it's all up to some childhood trauma or parental behavior. Hell, the idea that people are "straight" or "gay" is fairly modern and limiting to begin with; people are more complicated than that when it comes to sexuality, including you, judging by what you've said.