To me you are both incompatible as friends. You require little social interaction and I guess wouldn't really have a "best friend" or could do without one as such where she wants really close friends that she sees all the time etc.
I don't really see it working out between you. You need to just be blunt and honest. Tell her you don't like her messaging you all the time. To me I think you just need to end the friendship. That's the way she is and you can't handle that (which is perfectly okay). Not every nice person that you get along with is going to make a great friend.