I Am Trying To Accept The Things I Cannot Change

Someone I care about so much I would kill for if I had to just recently lost her Grandad. We normally talk every day but recently its been very quiet and I know she's in a lot of pain. It's horrible that there's nothing I can do to change how she feels, yeah I could comfort her but I've tried and she is so devastated that she just doesn't want to talk about it. Just wish I could take her pain away, it's horrible to see her like this and when I put myself in her shoes it takes me back to when I lost my Nan and how that tore me to pieces. This is something I cannot change and accepting this is very difficult.