Voldermort had returned and everyone already knew it. Everyone was coming up with ways to fight him and how to eventually kill him

Before he appeared in front of the Hogwarts walls, he ordered a meeting with the Death Eaters to analyze the plan to attack. One of the supporters (already former) was Severus and you. Even before your marriage, together you joined Voldermort's army simply to survive.

The Dark Mark on your left forearm constantly reminded you of this fetal mistake of the past. You arrived at the place, the room was dark and cold and in the middle was a long table where the Dark Lord was already sitting with the other Death Eaters. They were all waiting for the two of you. You didn't let it show, but you were scared as hell. You grabbed Severus' hand and together you sat down in your seats