Yitayningwut: You can’t claim the feelings of emotional love is neither classified as “good” or “bad”, since you do agree that when used for good, these feelings are actually what makes the person be defined as someone “good” in nature; so then obviuosly the essence of these feelings are actually “good”.
Additionally, your comparison of emotional love to one’s desire to eat is not a fair comparison, since the desire to eat is never classified as “good” even when the act of eating is a “mitzvah”; however, emotional love is clasified as “good” when it brings about acts of kindness for others.
Lastly, how do you see from the Gemara you quoted that sympathetic feelings for animals is not genuine “good” feelings; of course I agree when there is a ‘mitzvah’ to eat “busar” we must eat for bain adam l’makom reasons?