Although i am very late...Welcome to the forum...
I too live abroad and i have a lot of non indian friends watching KYM...basically I passed them my addiction...they dont quite understand hindi but they still love the show...basically they enjoy or lets say admire watching Shabbir..
And coming to ur questions...abt the house well the shows all have the same production house...therefore they tend to use the same settings...
And coming to Alaap and Sukriti...well on indian television...u will hardly see any scene involving love making...they try to show it as explicitly possible...
And that song..well a lot of us hated it as well...