Here's an idea:
If you are invited to a wedding that you don't feel good about for whatever reason,
let's say you don't agree with it,
my most sincere tip is to
Don't show up with a scowl on your face,
assuming that it is better to be present at the celebration,
all while demonstrating your unhappiness,
your outright animosity.
It is not.
It is better - for all concerned -
but especially the happy couple,
if you stay home.
For no newlyweds should ever have to suffer through
the cold shoulder
during one of the happiest days of their lives.
There is no amount of your disapproval that should ever diminish their joy.
There is no amount of your disapproval that will keep them from marrying each other.
There is no amount of your disapproval welcome at a wedding.
This is a tip - a quietly fierce tip - about wedding attendance from a woman who has seen quite a few.
PS. If you received an invite and must decline, please remember to send a gift.