With the way Dean is clearly grieving more over Cas than his mother I can’t help but think of what Samuel Campbell said to him about Mary in s6
SAMUEL: You know, the one difference between us: you know how to live without her.
And I think this is true for Dean in s13.
Dean’s lost both his parents. He’s had to live without them. It hurts, but it’s a familiar hurt.
Losing Cas though? Every time he has, he’s spiraled (s7, s8, and when he was missing/in danger in s11, s12).
Only, it’s gotten even worse because Dean has loved Cas for years, but he’s only more recently been willing to face the fact that he’s in love with Cas.
And recent ‘I love you’s and mixed tapes have him filled with regret and painful ‘what ifs.’ Maybe he was finally ready to let himself want something more with Cas and now that love has been torn away from him.
So Dean knows how to live without his mother, but he has no idea how to live without Cas. To live without the person he loves, his chosen family. It’s a life without hope and he can’t face it.
