"no scientific evidence of love"? You've got to be joking lol. But somehow I don't think you are:
1) "God" is a clearly-defined object, of which there is absolutely no scientific evidence or support - in actuality, all clear-thinking logic and scientific discoveries essentially go against this idea
2) "Love" is not as clearly-defined, but in any of its 'forms', there is ample scientific evidence to declare it a fact. It's like saying "there's no evidence that 'freedom' exists" - which is ridiculous, because Freedom is a concept defined and invented by humans, and represents a broad array of general situations, all of which exist. Just like love, they are both "invisible nouns", like 'friendship' or 'hatred', but that doesn't mean they don't exist. Depending on how you define "love" and what you put under its umbrella, there is overwhelming scientific evidence for the existence of love
It's like when theists pull the "faith in your friend" card, ie, "You trust a friend to return a DVD, you have FAITH in them" - that's a figure of speech, not actual religious faith - it doesn't count as faith since you would have tons of evidence that your friend is trustworthy, etc. It WOULD be a leap of faith if a random stranger asked to borrow a DVD, and you let them. However, say they look like a really nice person, and you saw them in the grocery store helping an old lady. Then you might be more inclined to take that leap of faith, but that's because you have more evidence to the 'trustworthyness' of the person in question, and the leap of faith is less of a gap.
anyway, I'm getting off topic. The point is, (1) saying there is no scientific evidence for love is ridiculous, (2) Zeus is Love, duh, everyone knows that, get it right , (3) why are you trying to incite a religious debate in any which topic when, if you stopped to think for a couple rational seconds, you could've saved yourself from posting the above post as well as saved me 10 minutes of typing this