Wow, remember Adam?? This woman you gave me?? Divorce?? Read 1 cor 7, separation ok you can't get on, but as Paul clearly states what the Lord says, your married death do you part or reconcile. Last 50 yrs marriage has been taken as a breakable covenant, we stand before God with our vows then later say "it's your fault Lord you gave me my spouse" or "God said I could divorce"
There's nothing God can't do to fix any marriage, takes dying to self and commitment to start with in any situation, seperated or not.