Yes, the decor is very unusual - more "jungle style". They do put fresh Hibiscus flowers all around the room. Each room has a CD player with unique music compilations which is playing as you enter your room.
As for the "erotic" theme - I think if you want more of that experience you can arrange for a massage treatment together. The massage rooms are really cool.
Maruba arranged for my trip to Altun Ha, and we went in the morning and avoided the large groups who would get there later. They also offer a jungle walk and horseback riding. There's also a shuttle that you can arrange to pick you up and return you back to BZE.
Good luck - I'm sure you'll find just the place that suits you.
