I have been invited to my nephew's wedding on Saturday. Unfortunately, due to a motorway journey of at least three hours each way, and getting to the church, sitting in uncomfortable pews for an hour or so, then milling around outside, followed by a crowded noisy reception, I will not be going. Or, as you say, it isn't happening.
I would also be responsible for looking after my Mother during the day. Someone Else will have that pleasure.
I have apologised to my nephew, who seems to understand, and to my brother, who also understands. I have hardly seen or spoken to my nephew over the last ten years.
When the Wedding was first talked about last year, I really thought I would feel up to making the journey. Sadly I am not. Staying overnight at the venue, does not help, as I would then have to take two cats to a cattery, and accomodation at the venue is extremely expensive.