He remembered that the first time they met, he foolishly thought she was going to die.
He remembered that in the first photo they took together, she smiled so brightly.
He remembered that he fell in love with this girl at first sight.
He remembered that she was the kind of girl who pretended to be strong and stubborn, so he would usually be by her side.
He remembered that the first time she caught a bad cold in the rain was because he got angry and left without grace, so he regretted it very much.
He remembered that when he saw her limping in the hospital with a broken foot, his heart almost died.
He remembered that he saw her pretending to be happy and smiling for a long time at that person's wedding ceremony.
He remembered everything about her, because every time he looked through these photos, he would be reminded of those precious memories, so he remembered.
Remember, it's because I can't bear to leave.
Can't bear to forget her.