Rivals WangXian who have been secretly and RELUCTANTLY crushing on...

The thing is they THINK their crush is a secret while in reality their peers have been cutting the sexual tension with metaphorical knives for years.
And everytime he cracks a new joke, WWX's eye twitches. People laugh and WWX's fist clenches.
But everytime he gives WWX an imperceptible nod, LWJ finds himself a step closer to the bar.
Everyone present can see what's going on – it's practically visible from space by now – except, you guessed it, wangxian.
And WWX refusing to let anyone touch him. Only he gets to do that coz... he has done it before and knows that a drunk LWJ means clingy LWJ.
But they do get together, and then married, and then have a son because, well again, it's WANGXIAN!!!