Some people might offer a hug. Hugs are nice; Bella is not averse. But she doesn't know what Sherlock thinks of them, and she does know what he thinks of logic, so instead she continues,

"And now that you know about it, you can work on it. That's the comforting part," she adds. "I find it very comforting to know that I do not have to submit helplessly to things about myself that I don't like. I haven't always been successful in eradicating them, but I can at least modify or temper them. And you have far more experience than I do in personality modification." Which, she thinks, is putting it mildly.