Firstly, thank you for sharing here, that takes a lot, opening up about it. Especially with autism.
I lost my best friend to suicide in 2020, we were inseparable and did everything together. Very close. I know how it feels.
I’m really sorry for your loss. Be kind to yourself and understand that it’s going to hurt a lot for awhile, there will be big waves to ride. During these times you really need to hold onto yourself. Man has never made any material as resilient as the human spirit. Be faithful to that which exists within yourself.
Use your senses to ground yourself. Try bring yourself back to the present if you can. Concentrate on little small things, birdsong, the texture of a book, small details that you can touch and feel. Practice heart breathing. That is, inhaling and imagining that you’re inhaling into your heart then exhaling out through it. Journal and brain dump. Write him letters if it helps.
You are allowed to grieve, be patient with yourself. This is a difficult time. He loves you, he’s no longer in pain now, but he would want you to be happy and continue on.
all my best wishes and thoughts
papermoon