Jason was part of an odd-ball team of Titans Donna put together. All I remember is that Hawk, Speedy and Aqualad were almost members of thae team. And IIRC, he and Robotman helped the Titans put away Brother Blood big time.
So his statements above are kinda odd. IIRC, when Todd was on the Titans, he did work with Gar and Cyborg. Raven was a prisoner of Brother Blood and was only freed in the last mission Jason performed with the team. Not alot of time to interact, even off-panel.
Though it might just be that she came from a background that Jason could respect and talked straight to him. So their time was briefer but more personal.