Boanerges

Just curious, if you don't expect an answer why ask?
You did a good thing leading this young lady to a place where she could be touched by God. Why did you stop? Find a good church and expose her(and you) to the Word of God and the love that can only be found in the presence of God. There is nothing to compare to the reality of being touched by God almighty Himself and it is obvious that your girlfriend was drawn to Jesus the first time she was exposed. The bible teaches that we reap what we sow. If we plant corn we grow corn, itf we plant wheat we grow wheat. Why not spend some time sowing the Word and love of God into both of your hearts.
Do you really want me to address living with her. If you know God you already know that is not His plan for either of you. It is much easier to bring someone to Christ then to change them yourself as this is the job of the Holy Spirit. When someone has a face to face encounter with the very Living God all ones desires began to change and that one is lead into repentance . As we surrender our lives to the one who loves us most we find peace, joy and freedom that can be experienced nowhere else.
There is a hole in every heart shaped just like Jesus. As long as that remains empty we wander about aimlessly trying to fill those empty spots with everything the world has to offer. We get what we strive for and a few minutes later we realize we are empty again. Only Jesus can fill your hearts my friend as we were created to intimately fellowship with God, anyhting else is contrary to our very purpose.
I believe firmly in the power of prayer and will be praying for you both.
Much love and many blessings IN Jesus Christ, brother larry.