Not long.

[ He catches that look, dressing in his heavy layers (and hoping his hair will have somewhat dried by the time he makes it down the mountain). Xichen wraps his arms around Wen Kexing's waist and reels him into a hug from behind, hoping to reassure him and kissing his neck. ]

I'll have something to eat sent up to you, if you want it, and finish my business as quickly as I can to return to you.