Help with wrongfully being evicted

*WE HAVE PAID RENT EVERY MONTH UNTIL NOW*
Our landlord in Pittsburg county Oklahoma is now evicting us because we have refused to give him anymore money until repairs are made. We first requested the bathroom repairs be made 4+ months ago. He has made excuse after excuse and has not made any attempt to fix the rotted flooring, the sinking tub,the electrical issues or the toilet that almost dumps over when it's used. Now he is texting making accusations of me being unemployed and of using drugs (both lies). I want to know what I can do.