Presence is something which can't be judged. It is something which makes us happy as well as sad, Happy in the terms of that we are assured that someone is present there to accompany us in our hard times someone is there who will sooth our pain in most painful moment, a hand will be at our shoulder in assurance that "don't worry i am always here", the hope isn't that someone will come and wipe our tears, will say " don't cry please it hurts" but the hope is someone will stand there beside us and say "please let it out, let your all sorrows be out so that you can be out of that pain let it out don't keep it in your hurt it is hurting you, your tears hurts me i know but if you will not do so then these tears will never stop so let it be out at this moment itself" those people are rare who come and stand beside you in your hard times and are the reason of your smile. They are something special in your life they are the gems, their presence affects you a lot, if they are beside you, it will affect you happily, but if they cheat on you believe me you will breakdown into parts. Never make someone so special that their absence kill you and their presence fill you up with emotions.
