Womble , you are wise to seek support to keep him away . Your not the first woman to go back and you wont be the last , dont beat yourself up about it . Keeping mine gone was one of the hardest things ive ever done . Of course you have wanted to beleive him , who wants to have to know theyve married an abuser ? Far easier to reason it away and forgive and hope . Have you read up on stockholme syndrome and cognitive disconance ?
I think you need a strategy , and i think you need to implement it like a military operation . I would aproach womens aid for counselling , not so they can tell you what is and isnt abusive , your not daft and you dont need telling , but so you can examine your weak spots . Often the answers are in the past , . I am a sucker for feeling guilty and responsible for others even though i know its not rational . Once i knew why i did this it became easier to stop doing it . I assume you will have your own weak spots that he will no doubt try to exploit.
I note you say you are isolated , but presumably you once had freinds , has he got rid of them ? Could you possibly get in touch again ? The trouble is , abusers often ensure that your focus is entireley on them , they often make sure the house revolves around them , so when they are gone , there can be a sense of " what now ? " . Instead of being releived you can start to miss it daft as it sounds . Fill that gap with something else . Imagine a house with one brick missing , its allowing a rat to keep getting in . Brick it up .
I bricked it up with learning to drive , making new freinds , going to college , decorating and changing the house round . I made a life that he could not just slip into unnoticed , he did not belong anymore , too much had changed . Make those changes Womble and keep the rat out .
It might help to think of yourself as a sort of drug addict . You might occasionally want a little fix of abuse . Its not talked about but its true . Make a plan on here or on paper , of all the what ifs and possible eventuallitys , and have a plan to deal with it . I would start a thread , as others have done , asking for help and support from others whove experienced similar .
Well done for getting rid of him .