He's jealous of animals because women (and people in general, actually, but Russ only really cares about the women) love them and not him. Russ is so much smarter than some stupid animal, can't they see that? No lousy squirrel could get a two year degree from a strip-mall quality college, where are its fruits? Heck, a squirrel maybe doesn't even live for the five years it took to earn that degree, frick, he doesn't know because it's not important! Squirrels don't have plights, they just scamper around outside eating nuts and insulation or whatever, not like Russ! Can't she see how unique Russ is? A squirrel, you can probably just go and buy those at a pet store or wherever, but there's only one Russell Greer! A squirrel doesn't even have wooing words and can't give her a better life, why should she pay attention to it, this is so messed up.