Are shipboard romances with ship officers, crew, or staff considered off-limits?
Yes and no. Most cruise lines have strict onboard policies. Passenger cabins are strictly off limits to ship staff unless for official business. Crew and staff areas are separate and usually off-limits to passenger areas and are clearly posted as such. This is not to say that passenger/crew shipboard romances will never occur, but relationships should be pursued after, not during the cruise.