Intimidating wolf, but he's my brother

Whenever Theodore shifts into a wolf, Nina feels so scared thinking that he wouldn't recognize her and attack like the first time. But every time he remembers her, his intimidating red eyes watches her for a moment before nuzzling his neck on her shoulders. Nina will get surprised every time by that gesture and she will pet him gently with a smile. 

Theodore then ran into the forest to hunt and she would wait until he came back to her. Sometimes he would look disheveled, sometimes he would look terrified as his mouth and hands were covered in blood and a few times he would look happy. And he would say that he's fine if Nina looks at him worried. 

Like that, Nina was waiting for Theodore to come back. She covered herself in a shawl to protect herself from the cold. When she closed her eyes feeling drowsy, she suddenly heard a scuffle near her. Nina quickly looked around but she could find no one.