as it's been so long, perhaps you could make the first move?
Sorry, you've probably thought of all this already but for some parents it was an extremely hard decision to send kids back to school or not, with a multi-faceted decision to make, not the least of which being if their children would be safe, perhaps both parents had a different view, perhaps she was getting pressure from other mums/social media too. It's much easier to get cross at those people who are the closest to us (as we know they will forgive us!). My daughter went back in june, and it was a relatively easy decision for us, because we both thought the same (although we did come under some pressure from other people - people implying we didn't care if she was safe or not). I think if my mum had weighed in too it might have been the straw that broke the camel's back. i'm not criticising you, please don't think that, just pointing out that it's not an easy time for parents of young children. Sadly I know from experience how things can change in an instant with families, so don't leave it too long :)