Fortunately(?) for Strange, he's going to be able to clearly hear Rita's response to his call.

Glancing over in Strange's direction, 9S just casually gets up and walks a few steps away. Close enough that Strange can still hear their conversation, but oh, he'd like to have a little bit of distance in case Strange decides to do something about him telling Rita. After all...

"Sooo, I was just talking to Strange. You know Strange, right? He thinks we'd make a good couple." A glance over in the magician's direction. "He thinks we're doing things."