relationship

recently left bf after 1 yr 5months his got mild autism and so still has a perfectly normal life like anyone else. However the longer I was with him the more nasty he got and I stayed silent until a year and when I ended it he turned all my old friends against me and tried to turn my family also as I had stayed silent on how he treated me behind peoples backs so only few caught glimpses of his other side and he said he changed so I got back with him and then he suddenly again and for the final time has clearly shown his intention of ruining my life when all I want is him to move on and be happy.