Welcome to you, I'm free to talk, if you prefer. In any event, it isn't uncommon for people on the autism spectrum to process emotions differently, though grief can affect everyone differently.
I remember as a child, when my grandpa died, I was disturbed with myself for not feeling like it affected me as it affected everyone else; even so, lack of overwhelming emotion doesn't mean you don't care.
I'm sure you will find much in common with people here and I pray this community proves helpful to you.
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Christian, Aspergian, Recovering Bundle Of Neurotic Anxieties.