The line that resonates with me from Endgame is:
"We're going to be okay. You can rest now." - Pepper Potts
She was so brave and strong. She loves Tony and of course she wants him to live but there's nothing anyone could do. Despite the hurt, she put on a brave, loving face and assured Tony that it's okay.
With that, as a Tony Stark fan, despite the sadness and tears, I believe we're going to be okay. It may take time but, we will. Some may feel angry, others may be in denial but, in time, we'll have to let go.
Sorry, I'm just so emotional right now like, I'm literally bawling as I type.
I love you 3000 times, Tony Stark. You can rest now.