I Paid $5000 For My MIL's 50th Birthday Party While Her Kids Paid Nothing, But She Banned Me Last Minute. So I Canceled Everything And Then All Hell Broke Loose

I went all out for my mother-in-law’s 50th birthday—$5,000 from my own pocket, months of planning, and not a single contribution from her actual kids. I didn’t mind, though. I wanted her to feel special. But then, just one day before the party, she called me with a cold, dismissive tone: “I don’t think you should come.” No explanation. No gratitude. Just like that, I was shut out of an event I had made possible. So, I did the only thing that made sense—and the fallout was worse than I ever imagined…