So sorry for your loss. Funnily enough, I'm dreading summer too, for different reasons. We lost my dad in late autumn, so it's not an anniversary. It's more than it's more normal and acceptable to hide away in winter. Even the glorious sunny weather we've got at the moment, it's obviously beautiful, and I normally love spring, but I'm feeling pressure to be out and about, and I'd rather hide away. Also, my dad always loved gardening, and loved spring and early summer from a gardening perspective, so there's something about his absence in spring & summer that's extra challenging somehow.
I know a lot of grieving people struggle much more in winter, but I guess that shows again how differently we all grieve.
I can't imagine not grieving for my dad. I don't know if/how people get to a point of not feeling sad about their losses? Maybe they don't? Maybe we're all grieving to different degrees till it's our turn to leave this world? I believe in the afterlife, and I'm sure my dad's happy and at peace now. But, I miss him, and the thought of not seeing him for several more decades overwhelms me.
Anyway, sending you love x