I would wager he considers Dick to be his best friend. Ralph literally doesn't have friends, this was originally supposed to be his wedding and he brought nobody he knew irl from back home, and while the event was going on he was either sitting in a corner alone or yelling at Jim on Twitter. I don't even understand it, somehow he has actual fans like this weird ass UState guy who is inexplicably proud of giving him "thousands of dollars" and shaking his hand and yet people still don't seem to want to hang out with him for an extended period of time.