love is just a chemical reaction in your brain
If it feels good then it makes sense. Love is an emotion, it doesn't follow logic.
Like I always say:
"Love is being stupid together."
As far as that goes - what does actually make sense? Love when it is right, doesn't make sense - it just works :)
It may be all of the these answers but it sure makes the world go round.
Love, just like every other emotion, is delusional nonsense.