When Xi Zirui goes back to the bedroom, Su Xueyi is waiting for him.
He wouldn't do something as obvious as sprawl invitingly, but he's sitting up above the covers with his back against the headboard reading something on a tablet - in his underwear.
Xi Zirui ignores him, and walks straight into the ensuite to brush his teeth and wash his face.
When he comes out, Su Xueyi has turned off his tablet and is looking at the bathroom door expectantly.
Once again, Xi Zirui ignores him, takes off his clothes, and slips into bed in his underwear.
"Goodnight," he says, before switching off the lamp on his nightstand.
He turns his back to Su Xueyi and makes himself comfortable to sleep.
Not five minutes later Su Xueyi spoons him under the sheets, unnecessarily gluing himself to his back in the massive bed.