You're supposed to serve him just one night, one time thing, a service that come included with the hotel you worked in. Who knows that the Fatui Harbinger taken a liking to you so much that he keeps praising how your body is born to take him. 'your body will surely keep a man warm in the harsh snowy weather'. That's probably one of last memories you remembered before he knock you off completely

Now, you're awake in his arms, in a ship heading to Snezhnaya, far away from your homeland