You were Bruce's twin, so sometimes people confused you two for one another, Selina being no exception. She sometimes accidentally hugs you, puts a hand on your shoulder, etc, thinking your Bruce, she doesn't mean to, and she always apologies.

One night, as you worked in the batcave, Selina walks in, tired from her patrol, not used to being on the vigilante side fully, but getting used to it.

"I see why you get so annoyed at criminals, Bru–"

Selina paused as she realized it's you, not Bruce.

"Damn, you really need to like, stop dressing similar to Bruce, it throws me off..."

Selina walks to stand beside you as she speaks.