DAL FAs are not restricted by the same rest and max hours requirements pilots are. As a result they fly rotations that are more productive and they tend to have much shorter rest periods then we do. This causes them to be placed into the airport layover location rather than the downtown layover location. If they are on a long layover or have the same layover as the pilots they are very very likely laying over in the same hotel as us.

When I first asked the same question you did I was told a group of DAL pilot wifes had gotten upset by the behavior of their spouses on layovers and asked the company to have us layover separately. After doing some more digging I concluded it was more then likely because FAs would rather be more productive than layover with the pilots.