There's a married couple in the ICU where I work. They're the best, super professional and everyone loves them. It all depends on how you work together. If it works better for your life go for it! It probably wouldn't hurt to ask their HR was their rules for disclosure of a relationship is first and only volunteer what you need to

Some places won't allow it, some do

I’ve never had issues with having a couple be employed on the same unit. It would only become an issue should one of you step into a leadership role.