doesnt pls me anymore

My husband of 10 years doesnt pls me anymore at the first 4 years after we got married we would have sex atleast 3 times aday no joke hot and heavy couldnt get enough but the last 6 years have been VERY uneventful for real yall.  we have an open marriage now because of this because i told him this.  the thing is i dont want to have sex with him at all anymore it seems like a waste of time and it creeps me out. we are very finanically stable and have a son together I still love the shit out of him tho isnt that crazy i dont feel the need to leave him just no more sex. whats a girl to do?