OMG could it be HULI??!!!!! Hot couple make प्यार AND war 

I don't think it is, I've considered it, and haven't posted a link cause I believe they love each other.

In every way possible.

And although Hugh has referred to their making out as 'odd' I don't think he would go to such length to saying she's inappropriate

It is NOT Huli. The article says the characters are having a "torrid affair" and that's not Huddy.
Besides, in any interview, photoshoot, or publicity tour I've ever seen they always seem to enjoy each other's company and have no issues with each other.

We've already talked about it a lot and it's not Huli...

"Question: Please tell me that your newest blind item about the quarreling on-screen duo is not about Hugh Laurie and Lisa Edelstein. —Chiara
Ausiello: Are you kidding? Do you see the way she talks about him? No, it’s not them."

link

def. not them :)