But most people wouldnt expect their literal mother to suddenly start sabotaging the entire thing.
One person ended up having theirwedding day practically ruinedby a narcissistic and downright unpleasant MIL.
They decided not to forgive her but asked the internet if perhaps that was an overreaction.
From the perspective of the narcissist, they are not doing anything wrong.
Rather, an incident, say, OPs wedding, causes them to feel bad.
As one comment noted, a narcissist loves other peoples events.
This is because upsetting an event is a great way to rectify a cosmic injustice, i.e.
people paying attention to someone else.
It helps maintain self-esteem, which is overall very important.
Seeing yourself as important, smart, and overall good is perhapsbetter than the crushing self-hatredmany people deal with.
But like most parts of life, there can be too much of a good thing.
Unfortunately, parents are pretty common candidates when it comes to narcissism.
This is particularly horrible, asthe lasting effectsof having narcissistic parents are severe.
Instead, they often blame themselves for the parent throwing a fit or worse.
However, OPs MIL does seem to still be very much present.
She was even involved in the execution of the wedding, where she repeatedly failed to do her part.