Was it only 6 mos? It seems like we were LIVING TOGETHER before I ever heard you say "boyfriend."
Fuck her, and fuck her well. It might sound crude but she's probably waiting and wondering why you haven't yet. If you put it off too long, she's gonna think you're not really interested in her. If the relationship only lasts a few weeks, then it's the wrong time and place or it just wasn't meant to be..