Divorce at 66?

I've been married 33 years to a man who hasn't touched me in 25. He literally hasn't kissed or hugged me in a quarter century. He lives in a separate room and does almost nothing other than cutting grass. He only ever worked part time and we made the same amount.
I pay bills, manage household repairs, do all food shopping and cooking (though he often eats out alone). I'm scared to be completely alone but I'm tired of living with someone who won't contribute anything. He comes along on vacations but I have to do all the planning.