I Don't Understand~ the short love story of him and I

Call

He can't sleep so he calls me. Im ready to ask him about school, and how he is when he speaks, his grandpa died today. I want to give him a hug and be there for him. Then he tells me why he really called though. He wants me to know that I can see other people, and that he think we should just be friends now. I ask why, I ask what changed, I ask what he is thinking. None of it helps put my mind at piece. He says he has to go to bed and tells me goodnight then hangs up. I don't understand the sudden change. I don't understand why he is wanting to see other people. I don't understand how he fell first and is leaving me. I don't understand how two weeks ago he said that I could never love him more than he loves me. I don't understand when he stopped believing that we were worth fighting for. I don't understand when I lost him. I don't understand anything.