You feel it, then you know

I think there are appropriate websites for hopeless semi romantics. I am not sure this is one of them.

To love or not to love ,this is the question ! ;)

Don't confuse lust with love

You are asking for a definition of love, is this what your question means? I would go with the physical things: feeling your heart pound in your chest. Thinking the person you love is one of the most wonderful people in the world; giving them admiring glances and, hopefully getting similar looks back. All that sort of thing I suppose. Wonderful when you feel it, then you wake up! Sorry for the cynicism!