Been there done that. I was "best friends" with this one girl for over two years during my prime college years. Yeah, we did all that stuff - eat, shop, go to shows, etc. She had a couple of boyfriends along the way and I was terminally friendzoned. Sure, she was cute (I thought so) and definitely nice and wife material, but that's it. Eventually, I found me a serious girlfriend and funny thing happened. New girlfriend made me get rid of her so I did - besides, having a serious girlfriend takes time and energy and effort. In the end, I married the new girlfriend.
Cliff Notes: Been there, find a real girlfriend, real girlfriend made me get rid of "friend zoned" girlfriend. Happily ever after.