Spa, Suana In Bangkok?

hi guys,

not sure whelther i am suppose to post it here or in the bangkok local category (moderators pls help me if i posted wrongly thanks a mill in advance)

me and my girlfriend going to bangkok soon.

q1) is there currently any spa, suana with private rooms for couple in bangkok? (just like how it is in taiwan)

q2) is there any good places to go for couples at night ? nice scenery ? or nice place to chill out ?

q3) there is a instrument whereby you can smoke from it (parakut or something)

with apple favour etc etc.. any nice restaurant that provides it ? i used to go to a open place with live band and nice food, but i dont know then name of that place

lastly, i have been to bkk a few times and my gf is a thai too (but seldom go bangkok) so i tink it would be best to skip those temples and shopping places)

hope to hear great recommendations from you guys!

thanks alot guys!