@haywire,
You have the right idea; love is a behavior. For me, it's treating all people equally regardless of background, race, ethnicity, religion or politics.
However, for humans, emotion is hard to overcome. We all have our individual perceptions of right and wrong that differ from others. I think that's where the alienation is created and causes arguments/disagreements.
Look at how most Americans think about the subject of the US attack on Syria. Most are against it, but the president and many others in politics want to send a message to Assad that using chemical weapons is wrong.
Who's right and who's wrong?