Hearts Collector!

I am trying to find an exact name or definition for a person who collects things. Whatever those are, like coins, stamps, buttons, butterfly. Well, I know collecting is not e new phenomenon. Moreover, in a way or another most of people will collect something in their life. A deltiologist collects postcards, a numismatist collects coins, a vecturist collects subway tokens ect. I read somewhere that most probably Prophet Noah was the most famous collector of all because he collected two of every living animal and housed them in one ship. But, what about those who like to collect sparkles of feelings, memories, and happenings? Those who will try to put a living emotion into every single detail. Those who will keep in envelope a shirt button, not because they like to collect buttons, but because the button has a part of the person wearing that shirt. I wonder what I should name a person, who like to collect moments, seconds most likely,... Yes, Second is their most favorite collection. It’s that second when the tear just dropped from an eye, while eyelashes were fighting so hard to pull it inside. It’s that moment when 2 people will look into each other eye in a flash, (it doesn’t really matter how long they will keep looking, but the start was that miraculous momentous). It’s that single word in hours of talking, which will be saved in your memory forever and will make your day whenever you remember it. It’s that one of a million of seconds, just before waking up from your dream. It’s that first touch of little fingers, in a couple of years holding hands together. It’s that second when you hear the sound of the text message that you were waiting for, and will make you hold your breath on. It’s that small rose grabbed from the garden in hundreds of flower bouquets. It’s that piece of paper where careless is written: “I love you” in a dozen of expensive gifts throughout your life. It’s that single name in billiard of people that you won’t get fed up calling. It’s that hand putting the blanket so careful because doesn’t want you wake up. It’s that one hundred of the second when your baby kisses you so fast and light as when you reach to catch her she has run away.It’s that second, when simple things steal silent smiles from you.It’s that second of speaking through the sound of silence. It’s that intimate seconds of your sincerity to God, a second of repentance, a second of sincere prayer,a second of forgiveness.
What would you call a person who collect glitters of days, pieces of time, sparkles of happiness, and bits of sorrow? He doesn't carry those in a box, neither a drawer, nor an envelope. He places the memories in his mind and sows emotions in his heart.