My husband worked night shifts for years. Well it’s not warehouse but it’s all night. We managed. Sure it’s not easy but it’s doable. I don’t see it as an issue.

You have to decide what you are willing to put up with. What’s your deal breaker?

I personally would never allow an adult living with me and not equally contributing. Nope. I
don’t care why he doesn’t work. If he doesn’t work, he has to live elsewhere.

Now if it’s not a deal breaker for you, just keep in mind that if you marry him and stay married for awhile you’d be paying him spousal support. For years. And in the worst scenario for life.

Also since he lived with you rent free that long, it will be rather hard to evict him. You might have to take him to court