Really, he doesn't want to be repaired or made. He can't entirely deal with how he got so close and managed to lose it again all at the end. If he's created to fail, it is much better to make that end for once and for all.

Scaramouche isn't careful when he opens his chest, tugging at the seams in a crude way until the front gives way and he can pry it open.

"Now give me your hand."

He reaches out to her, offering her his hand.