[Wheeljack has to press his face into the slab for a few moments, struggling with too many emotions all at once. He tried to speak and his voice failed him. Tried again, and it came out soft and wavering]

I will, my lord Megatron. I promise you. I will not fail you again, not while my spark is alight.

You have always... you have always been there for me. I want so badly to be there for you, too.