Before and After - Rich to Goth Kitty Rich on Patreon

Before: Rich is clearly wising off to someone who is off-panel...

After: ...But they shouldn't have messed with Kitty, who has transformed him into a catgirl in a goth themed outfit!

To be fair, it's entirely possible that Rich didn't say anything terribly objectionable. He's clearly cracking wise about something, but let's face it. It could be entirely unrelated to Kitty or anything she cares about, and this could have been the outcome.