There's never a time where Sol watches his sister interact with the world and thinks "Why can't she be better with people?" as she does. It's just not the kind of thought that Solomon has in that brain of his, and to his way of thinking Torrie wouldn't be Torrie if she was better with people - she's just as she should be.
Her prickles make him smile a little now, but it's more sober than usual and less pure in the eyes. Worrying is not generally a part of him, but losing Torrie would crush him to dust and he knows it. "I would have backed you up," he points out mildly. His eyes track over to Lita as she begins her questions. It doesn't occur to him to hide his willingness to take on extra-departmental investigations with his sister. He trusts Lita, trusts her compass and so he says what comes to mind. He would have gone along with Torrie to the North Loop if she'd asked him, an there's no use pretending otherwise.
But then they're moving on to the more immediate issue. Pretty fucking terrible sounds about right. "The happy face scale is on your face," he jokes, subdued, and then lifts his brows at Lita. "I can hold while you pop her shoulder," he offers grimly, knowing it will be the least pleasant part of all of this.