Love for me is when we go from being indifferent to the world, to picking out one specific thing and rejecting the rest.
So this is what is expressed. You want to show the world, (literally or symbolically) that you value one person above the rest.
...and in turn. Feeling loved means that you feel that the source of the love, cares more about you than other people. But not necessarily all other people. But the more the better.
When the source of the love cares for everybody equally much, its gone full circle and we're back to indifference.
I see love as a negative act. Not negative in the sense that it is bad. But negative in the sense that it is about rejecting things rather than embracing them. We just perceive it as a positive act. But just look at the acts. What are they doing? To whom are they aimed? What is their point? How are they formed?