She never asked for permission to be his friend. She just became one without warning. That’s just how she is, and he doubts this is ever going to change.
It’s not like he ever asked her to leave either. At first, it was because he was too freaked out to dare, lest he ended up finding himself on the wrong end of her fist.
Right now, though, it does not bother him anymore.
Especially after she took to the habit of cheekily lacing her fingers through his willing hand.
She still calls him Glasses.
This, too, he does not mind.