Now that we know Trevor's plan to exit "The Daily Show," which he announced Thursday, it seems kinda weird he'd have dinner with a casual friend the night before ... there are things to discuss with your closest allies when stuff like that is about to go down.

Well, it's possible they're just friends ... hugging and kissing on the street as friends often do.

Trevor sent shock waves in the TV world with his announcement he's leaving the show that made him super famous in America. As we reported, he has a ton of projects in the works, both in front of and behind the cam, and a daily show may have proved too much of a grind.

Both are unattached ... Trevor is no longer dating Minka Kelly, and Dua has Anwar Hadid in her rear view.