How to return things to normal in my marriage?

My husband is retired law enforcement now. I don't know how to return things back to normal after him being gone for so long. He had an intelligence job overseas but the time he told me he would be gone exceeded what he told me. he was working on a case but I don't know how to feel anymore. everything that was planned accordingly didn’t happen. I’m completely lost at this point. the trial was seriously late. Everything was late. he was gone for almost 4 years.

How to return things to normal in my marriage?
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