You are not involved with a mature person. If you choose to stick it out, you're the ONLY one that will sacrifice. Nobody can decide for you. You are the one that will pay the price for your decision, either way.
I say grow a set and lay the law down. You can't expect to go from single to a relationship and spend the same amount of time doing anything you did before. But if you don't make her understand what is and is not acceptable to you, buddy, it's nobody's fault but yours when (not if) she chisels away at you until you're stuck watching hunting on tv (when she's not home of course).
Like the old saying goes "There's plenty of does in the woods".