Why does he want me to move closer to him?

I met a guy on an online dating site about a month ago. Problem is that I have to drive about an hour to see him and he always feels bad about that, even though I really don't mind. When I told him my sister lives nearby (and she's also close to my work) and how she wouldn't mind a roommate, he told me how badly he wants me to move in with my sister because he wants us to be closer so we can see each other more often. He said ultimately he wants me to be happy. I decided not to move in with my sister because she will charge me rent and have me pitch in for food. I am lucky to live with my parents where I agreed to babysit my younger brother and pay for my insurance and phone bill. In return, I get rent and food for free. Living bill free for the most part has been great because a majority of my money made goes into my savings. And I still have money for the mass amount of gas I have to get and I can buy myself nice things every month. If I move in with my sister, I will have to pay at least $700 more and that's a low estimate. Also, I will have way less money to put into my savings account. I will break the news to him, but I'm not sure how.
Why does he want me to move closer to him?
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