[johnny]

Just because she's moving out of her parents' house, why does that mean you have to move in with her?

I don't quite understand why anything on your part has to change.

You don't have to feel pressured into "catching up" with her. You should continue your relationship with her just as you always have. The only thing different is she won't have to worry about what her parents are thinking/doing/etc. where you and her visiting each other is involved.