"No," Rampage says to First Aid's request to change the topic. Back off when things were just getting interesting? No way! "You and I have very different understandings of what doctors do and don't-"

And then there's Sixshot back again, interrupting, and Rampage's horns sweep back as he once again feels awkward and out of place between two people who actually like each other.

He shouldn't be bothered by it. It's not like he wants anybody to like him or anything. People generally aren't expected to like abominations. That doesn't stop him from lapsing into sullen silence though.