Love is a thing of depth. When forced to stay on the surface, it flounders about like a fish out of water. A fish can’t live on the surface, because it can’t breathe. It breathes oxygen but not from the surface air. Fish pull water through their gills, which dissolve the oxygen from the water and dispense it into their bodies. If they don’t get below the surface, they will be starved of what gives them life. Love is a bit like that.