I've been with my wife for years...its great. But we also acknowledge that we don't want kids. those seem like relationship destroyers, because you're no longer living for yourself. I also didn't just marry a "hot chick," I found a person who I shared a deep intellectual and philosophical bond with, that is just as much fun to hang out with as my male friends. No, she's not "one of the guys," nor would i want that, but we can go out and have a good time, and we do. Concerts, restaurants, bars...you gotta find out if you can actually talk to the person you're fucking. Any two people can fuck, but its a rarity that you can talk to them and be satisfied with it. Most of my male friends don't really seem to enjoy hanging out with their sig others/wives/girlfriends...they're in it for the sex and the company.
Want to know if you found a keeper? Take a road trip. if she's ok with driving in silence, and only talking when conversation presents itself, you've found a keeper. incessant talking is a sign of insanity and insecurities.