He never told you about his casual life girlfriend. You met him as Robin not Tim. And you two were dating before you even got o knwo who he really was behind the mask. You were just someone he saved and helped you out with your abilites. Of course then you became a vigilante but he already knew everything about you while you only knew Robin.

But you saw someone oh so similar to "Robin" with the same hair same height same body shape even and you started questioning yourself as he was with a gorgeous girl.. Ariana.

Feeling off you secretly follow them for a while and learn both of their names.

2 days later you meet up withe Robin and he norices your distance.

"Whats wrong sweetheart? Something on your mind?" He says in his oh so soft voice as he runs his fingers through your arm.