Why DID Rewind have those discs? There is more to his story than he's told Rodimus. It involves Chromedome's past, and his silence is key to the healing process in Chromedome's future. When Rewind decides to keep mum in order to protect Chromedome, the mnemosurgeon is grateful. Very, very, VERY grateful. Slight spoilers for MTMTE #6. Chromedome/Rewind.

IDW. Drift finds that the trust he places in his new friend is returned. More than that, he realizes Perceptor’s and his feelings for each other are beyond that of simple friendship.