This scene was always a little mysterious to me too. I’m not sure what the writers’ attitude is toward Cuddlywhiskers. Diane, who is often (but not always) the voice of reason, and a surrogate for the writers, calls him selfish. But Diane herself only finds happiness when she stops trying to save the world and starts focusing on her own problems. So I suspect the writers are endorsing Cuddlywinks, but it is a little ambiguous.