Upvote:3
https://www.gov.uk/foreign-travel-advice/jordan/local-laws-and-customs
Although co-habitation for unmarried foreign couples of the opposite sex isnβt illegal, it may be frowned upon. Some landlords may even ask if you are married or ask for a marriage certificate.
May is the key word here. And also landlords: you might have more problems in an airbnb than a hotel.
People from Jordan
https://www.reddit.com/r/jordan/comments/qrgg3q/travel_in_jordan_as_an_unmarried_couple/
and people who have travelled to Jordan
https://www.reddit.com/r/travel/comments/elol54/travel_in_jordan_as_an_unmarried_straight_couple/
both agree as a foreigner you will have no problems. There seems to be different rules for Jordanians.