And here I thought Ralph would only insult and threaten people's girlfriends/wives. Well egg on my face, the Ralphamale goes after any member of the female gender, no matter their age or size!
I do have to wonder why he would even think to challenge Grace to fight, if she accepts there are zero outcomes that make him look good. If she wins (likely), he'll never live it down. If he wins, well that's expected anyway - congratulations you beat up a girl who was groomed by her own father. Guess he is just that desperate to cop a feel on her.