A person who thinks all the time has nothing to think about except thoughts.
Remus was fighting the Death Eaters, when he saw how his boyfriend slipped away.
Where are you going, Sirius?, the werewolf thought by himself. He knocked out his enemy and quickly followed the young Black. Remus looked around and saw that the Order could handle the situation without him. The Death Eaters were loosing. He turned around and followed the path his friend had taken before him. The werewolf could hear Sirius breathing because of his heightened senses. Suddenly, he could hear a scream. Remus ran towards the sound and saw a door. He oppened it and saw his boyfriend lying on the floor. In front of him was Walburga Black.
"You are a disgrace to the Black family! You filthy little blood traitor, you don't deserve to live! First, you get sorted into Gryffindor, then you become friends with a half-squib, a pureblood who is our bloody rival and a half-breed, a wherewolf! And if that wasn't enough, you are a bloody faggot too! You have a boyfriend! A bloody boy! Who turns into a bloodthirsty monster once a month! We're better off without you! AVADA KED-"
The tall man jumped in front of Sirius, casting a clear "RIDIKULUS!" while doing so. Walburga turned into a goose with her tongue twisted into a knot.
"Stupefy!", Remus said, sending the boggart back into the closet (hehe, pun intended). He turned around falling to his knees and taking the shaking Black heir in his arms.
"It's alright Padfoot, she can't hurt you anymire. She's gone. She'll never come back. I'm here, come on Pads, nothing is going to happen, I'll protect you. i'm not going anywhere.", the husky voice of the werewolf said soothingly in the animagus' ear. Sirius was shaking and sobbing loudly, not calming down. He was having a panic attac. Remus let go of him and took his face in his hands. He turned Sirius to him, looking straight into his eyes.
"Padfoot. Padfoot, look at me. Can you hear me? Calm down. You're alright, she wasn't real. Your mother is dead. It wasn't real. Take deep breaths. Come on, you can do it. In, out. In, out." After a while, the shaking boy calmed down and looked into his boyfriends eyes. Grey met amber.
"...R-Re? Remus? Don't leave me, please don't go. Please.", Sirius said with an unstable voice. Hearing the trembling voice of his friend, begging him to stay, broke Remus' heart. He took him into his arms, enveloping with his arms in a tight hug, drowning him with his love and adoration for the man. Making him feell safe. The pair sat there a few minutes in silence, occasionly a few sniffs breaking it. After a while, Remus spoke:
"Are you alright? What happened?" Sirius looked up at the scarred face and smiled sadly when he saw the concern in the other man's eyes. He started telling his story:
"So, I was fighting Dolohov when he just ran out of the room. Of course, I followed him, you know how I am Moony." The werewolf cuckled a little bit. "Anyways, he went into this room, or so I thought, because when I got in, there was nothing but this closet. I should've known there was something in it, I mean, we are in are in the ministry after all. Everything has a use here. But still, I opened it, and my m-mother got out. She started insulting me, calling me a blood traitor, a faggot. I thought she was there, Moony, I thought she was goin to kill me. I was terrefied. I couldn't move. I'm sorry."
"Don't be sorry, Sirius. It's not your fault, you can't help it. Everyone is afraid of something.", the tall werewolf said. He started petting his boyfriends hair, humming a Muggle song. Eventually, they apparated home. Remus tugged the animagus under the covers, kissing his forehead and laying beside him.
"Get some rest, Padfoot. I'm right next to you."