He gave Barbara a huge compliment but doesn't want to call her. There's nothing sexist there. He also, very next panels, thinks about calling other people. Also doesn't call them either. Does go to find Cass.
The "Maybe it's not too late for Stephanie" doesn't refer to Steph as Spoiler or Robin, but refers to his hope that maybe she can have a good life and not die in the hero business, like Jason.