Although she'd been relieved when Thor had returned, Wanda was not placated because she knows about loss. She knows about shitty days too. She'd lost her parents and her childhood in a single day and then she lost her home and her twin in another. Their stories aren't exact, but they're similar enough that the sting of his loss is like a spark to her own. It reminds her of how crushing her loneliness is and how that feeling will never go away. It breaks her heart to think Thor has to live with that now.
Their paths hadn't crossed for very long but he was an Avenger, he was her friend and he was kind. Everyone was destined to die and everyone knew the people in their lives were finite but it didn't make dealing with loss any easier and Wanda couldn't think of a person less deserving of this kind of pain. She'd seen his home destroyed in his dreams, she'd felt the crushing burden of what lay ahead of him and she'd understood that night how difficult the future was going to be for Thor. Wanda just didn't think it would happen this soon.
Try as she might to calm herself, Wanda still ended up pacing the length of room as she waited for Thor. Davor was silent, watching her from the bed as she made yet another pass around the room and when he perked up she noticed. 'You heard something?' she asked him in Sokovian. He nodded once and Wanda stopped dead in her tracks, took a deep breath in preparation for the pain that was sure to be in Thor's eyes and sat on the edge of the bed. She stroked Davor's head for a moment until the quick knocks on her door brought to her feet.
The range of emotions that crossed her face were expansive and quick as she took Thor in, he'd lost so much. His eye, his hair and even the loss of his home was visible in the way he held himself. Wanda felt a rush of emotion and did her best to push it aside and offer her own sad smile. Tears wouldn't be helpful here.
"Come," she said simply, stepping back and allowing him into her room. Whatever she'd been preparing herself for, it wasn't this. When she closed the door behind him, Wanda didn't waste any time offering Thor a hug. "I am sorry, my friend." she whispered quietly as she held him.