does love need evidence?..

lately I am talking here in questions only.. of course I am not feeling myself and it seems I am standing at one place stepping from side to side. I am asking myself if love needs any evidence. Do we need to get gifts to clarify the love? Do we need to tell the other one that we love her/him to prove our feelings? Do we need to get a message on our phone at the same time we just sent a message to her/him? Do we really need evidence? Evidence of what? That we love or that we are loved? How much do we need to have opened eyes to see/feel that we are loved? How much do we need to fill our deeds with love and passion to demonstrate a love to somebody?..