Just received our dog's ashes back and my husband almost refused to let me see them....?

No this is not wrong. We had our 2 old cats euthanized because of cancer (just a year apart from each other) and they were both cremated. I didn't look at their ashes for closure, they were both brought in to us after they were gone to say our last goodbyes, but everyone grieves differently. That could be your hubby's way of grieving. Just look at them when he's not around i guess?