Young Goodman Brown

In this story young GOODman brown leaves his wife Faith and goes on a meeting with the devil. He is a young man who struggles with separating good from evil. On his way he struggles with his decision and is not sure if he should persist. But he does, and sees that many of his neighbors and even his spiritual advisor are present. When he approaches his destination he sees his wife present there as well. He joins her and as they are about to be ritualized Goodman looks in to the sky as to heaven and everything disappears. For the rest of his life he is not sure if what he saw did happen in fact or if it was just a dream. He has lost his Faith (as in his wife and faith in everyone). He spends the rest of his life in isolation from all.
Was this a dream? Why was a good man going on a meeting with the devil? If He is not sure whether it was a reality or a dream then why doesn’t he go back to his wife after that night? And why is it that he can not trust anyone? Maybe he has trust issues?.