Dreading a Client

I’m a very new Health Coach and had a practice client throughout my schooling who was very willing to work with me. Things went well, but I feel that she does not really want a coach, but wants to pay to be my friend. She just paid for 12 more weeks and I dread our sessions, because I usually end up feeling that something is off each time. I can’t really put my finger on it, but it is not a good fit. I plan to honor her new contract, but would like help for ending our formal coaching after the 12 weeks are up.