GMIMA,
You've got nothing to worry about whatsoever. Dubai has to be the gayest place on earth. From the flamboyant Filipinos working retail in the malls, to the Euro-ponces mincing about with the fake tans and capri shorts, to the greased-hair Lebbos desperately trying to appear butch in the flash leased cars they can't afford, not to mention the locals who apparently only consider someone gay if they're a "receiver" and not a "giver"…
I think you'd be just fine.
The most amusing part is you'd actually be at an advantage. Example: two gay cabin crew SFS's, both claiming the live-out allowance and living together. Couldn't do that myself with the girlfriend cause we weren't married, we had to maintain two properties. But those two can double down on the money from EK to live their "haram" lifestyle, because hey they're just two buddies living together! lol
It's a nice illustration of what happens in every repressive society. Sticking your head up your a$$ and refusing to acknowledge reality always backfires and has the opposite of the intended effect.
Of course if you wanted to be militant about it you'd be in hot water. But otherwise don't even give it a thought.