How do I keep her interested over text for 9 months?

In June I met a girl on Tinder, super hot skinny blonde, kinda quirky, just my type... We got along over text right away and after a week of texting decided to get together.

We went out and had a great time, took her back to my place and sealed the deal that night and again a few times the next day. We continued seeing each other all summer and thanks to the things I have learned over at r/trp I believe I managed to keep her on her toes and interested in me. We talked about love and said "I love you" actually on the first day we knew eachother. She has an interesting take on love in that shew "has a lot to give" and sees a difference between 'love' and 'in love.'

Cut to the end of summer, she headed back to college 8 hours away but will be back in my town for 2 years after she graduates. I'd love to spend more time with her next summer but I'm wondering how I can keep her interest over text. Most of my "game" I can only play in person - I can make plans and know how to deal with her shit over text, but I feel like I only hold my frame when I'm face to face with people. Some other points:

• She was impressed by my nice apartment
• She made comments on my fitness and called me "superhuman"
• I managed to impress her with my apparent intelligence
• She put on some major shit tests for pety shit I did and I passed with flying colors, literally going from her calling me a horrible person to fucking her against my counter in a matter of minutes.

Basically, what should I do between now and then to make sure I get another turn? I could see myself in a LTR after she finishes school. I need tips on how to achieve that but also not fall into oneitis.