Erwin was shocked to death when he saw that the bed sheet had blood stains, he immediately got up from the bed, observing your body, afraid that you were injured or something. Erwin slapped his forehead when he realized that last night you complained of menstrual pain, maybe it was your blood.

Erwin sat back down beside you who was still sleeping, Erwin combed your hair and kissed your forehead. Erwin wanted to change the bed sheets, but He doesn't want to wake you up before you wake up on your own, So, he just sits there watching you sleep, before he can clean up your mess.