This may be true. However God still hates divorce. A man cannot separate from himself on any grounds, that's what divorce does, separating a single entity(two becoming one). She should have patiently and painstakingly handed the matter to God and wait & trust him to turn her husband around. What then do we preach, why then are we Christians?. Going to the court(to men) to resolve our matters is unacceptable, particularly on a spiritual matter that marital institutions embody.
Babe this is not about anybody else but you. It's your life, your future, your peace, your happiness that count's. No one can live your life for you, or face your battles for you. This is a decision only you can make and only you know's what is best for you. Wish you the best with the decision you make, I pray & know all would be well with you.