tl;dr

Drinking is retarded anyway. Though if you're going to do it, you might as well be hanging out with good friends, because it's pointless otherwise. Bottom line, you're not missing out on anything.

Now back to the actual fucking topic, don't focus on Erin. Girls like to talk to people and like to get attention; that's what's going on here. No matter what you think, it is almost certain that she doesn't consider you more than a friend. This doesn't mean to abandon her; just respect her as a friend and keep it at that. If by some chance it evolves to something more, you may proceed, but don't count on it.

You need to start setting your sights elsewhere. Stop limiting yourself to what you can scrounge up in your immediate vicinity. If you really want to find a woman to get involved with, you need to broaden your horizons. Find some place or some thing where you can meet new people that you can relate with. And if your job is severely restricting this, then perhaps it's time to find a new one.

Double Post:
And after further reading I can see that many people are giving you many different suggestions. I say try all of them; one or more might just work for you. Though, I recommend to try just one at a time, so that you are more effective at determining the impact of each thing. Sort of like the scientific method.

Jam it back in, in the dark.