Maggie Bought a House

I need to talk this through with someone. Usually I talk to Maggie about just about everything, but this one involves her. I’m afraid that if I talk to her she’ll take it wrong. I’m not sure how I feel so I’m just putting this out there in hopes that someone will be able to offer me some thoughts, or help, whatever.
First of all, I should tell you about Maggie. We have been together for six years. She’s funny and a great friend. She can accomplish anything she puts her mind to and she’s beautiful. I can’t remember a time when I wasn’t with her. There is no doubt in my mind that we will be married someday. Tonight at dinner we talked about living together. You see, she just bought this beautiful house and she’s living in it all alone. My cash flow is seriously tight since I decided to go back to school and get my Master’s Degree. Last week my roommate told me he’s moving out. There’s no way I can make rent on my own. I could look for another roommate, but who knows what you’ll end up with there. Plus, with studying and work, who has time to figure that out. My only realistic option at this point is to move back in with my parents. That idea is making me a little nuts. I can’t imagine, after not living under their rules for the last 7 years what it is going to be like. Are they going to want to me to abide by the same rules I did when I was a teenager? Are they going to want to know my whereabouts? What if I want to spend the night with Maggie, are they going to freak out. All of these questions make me feel like this is the least attractive option in the world.
Tonight Maggie suggested that I move in with her. She said it will probably be our first home together as a married couple anyway, so I might as well just move in. And you know what? She’s right. I love the house. I even helped her pick it out. But, for some reason, I’m hesitating. I totally don’t want to hurt her. I know she’s lonely and I hate the idea of her being alone there at night. I’m afraid of what my parents would say and my pastor. What if they freak out about it?
On the other hand, I know I’m going to marry her, so what’s the big deal? It all seems to make perfect sense……. so why am I hesitating?