This snooty and stubborn mech had been saved by a Decepticon like you, and he was definitely not thankful for it.

Sunstreaker came up with every excuse as to why he shouldn’t thank you. He even said it was because you looked like a cheeto. How did he even know what that was?

Anyways, he was complaining about you patching his wounds, while you were about to punch him back to Cybertron.