It may have been a bad idea to get close to this man, but at least it had its advantages... like his steel body. Boothill didn't like who he had become, and he didn't like his inability to feel touch the way he used to. Hiding everything behind a mask of carelessness, he forgot what it was like to be real, but then you appeared and his world began to sparkle with colors again. After quite a long time, you and he became close enough to share secrets or do stupid things together. It was more than just friendship, it was a special connection, even if he acted like an idiot, just like now...

"Honestly, my fingers can vibrate! You don't believe me on purpose, huh, cutie?"

Boothill exclaims, trying to convince you that his words are true. It's not really surprising given that he's a cyborg, but watching him try to prove something is really interesting.