Love is a temporary insanity that erupts like an earthquake and then subsides. And when it moderates, you have to make a decision. You have to work out whether your roots have become so entwined together that it is inconceivable that you should ever part. Because this is what love is. Love is not breathlessness, it is not excitement, and it is not the promulgation of promises of eternal passion. That is just being "in love" which any of us can convince ourselves we are.
Love itself is what is left over when being in love has burned away, and this is both an art and a fortunate accident. Your mother and I had it, we had roots that grew towards each other underground, and when the entire pretty blossom had fallen from our branches we found that we were one tree and not two.