Not much really phased Wheeljack when it came to feelings. He'd been so detached from everything...it just didn't come as easily for him. But Vandal pretty much said 'your existence means something to me', something he's been hearing a lot lately. And when you're on the Autobot suicide squad...that has effect.

"Wouldn't leave ya for anythin'."

That last part gets a smirk on his face.

"Ya sure? They might be pretty kiddie for someone tough like you."