Rhonda is in the process of breaking up with her high school boyfriend Edgar. Since she's on the college hunting team she's becoming adept at bringing down larger and larger game. Edgar, meanwhile, is back at Caliban Academy dining on the smaller species around town.
Yes, Rhonda seems to be outgrowing him.
Edgar's a lion, and as a male of that species he doesn't plan on developing his hunting skills anyway. However, a tigress like Rhonda isn't interested in supporting a guy. She (like me) prefers a relationship with an equal division of labor.
So, I don't think they'll be producing any ligers in the future. (The only actual liger I know is this nerdy guy back at Caliban named Napoleon.)