What do you do when you still love the nice side of your husband?
Remind yourself that it is OK to keep the love you had and have. You are living apart from him and changing the nature of your relationship because it is the wisest and sanest thing to do. It doesn't have to do with love, but with action that is necessary.
Nobody teaches people how to manage loving predators, those who hurt us or hurt those we love. It's as though everything is supposed to be good or bad, when often it's just plain a mixture.
I think the way to deal with it is to allow both the good and the bad to co-exist and to make our decisions on what needs to be done, ought to be done, has to be done, not on how we feel about the one who we love but cannot live with because it is destructive and wrong.
Don't try to reconcile it. Just let it be unreconciled. Eventually, when you get further from this time, it will sort itself out.