Yes, but love is caused by physical and easily demonstrated chemical reactions. You god, if it existed, would have some sort of influence on the world, and that would leave evidence.<quoted text>
Right! Just like I can't prove God to you.
It's the same as the wind in the desert, we know there is wind even if we never feel it because it leaves "ripples" in the sand.
We know there are oceanic currents without elaborate tests, because those currents move objects on the surface even.
We're asking for evidence, not a photograph, though a photograph would seal the deal, so to speak. But you cannot show any actual influence caused by this god of yours, so it is safe to dismiss it.