I see.
[She covers another indulgent smile with her fingers. Yeah, she doesn’t actually get it. Those are great descriptors but they don’t really clarify the ‘dumbass’ definition for her.]
Other options:
no subject
I see.
[She covers another indulgent smile with her fingers. Yeah, she doesn’t actually get it. Those are great descriptors but they don’t really clarify the ‘dumbass’ definition for her.]