My ex and I share a child, so he was invited to our wedding along with his GF (20 years his junior) because we didn’t want our child to feel like any part of the family was excluded from the day.
Wedding was at our house, with 50% of guests staying either in the house or in tents.
his GF got so pissed so fast that I spent at least an hour on the bathroom floor (wearing a wedding dress) holding her hair whilst she threw up. All the while her telling me how she didn’t understand why I was being so nice, as he’d always told her what a psycho I was :/
She was too pissed to leave with him (we’d agreed he would take the boy at a reasonable hour so the adults could enjoy the evening) so she ended up in the newlyweds bedroom, waking us up approximately every 30 mins until 8am by heaving loudly into a saucepanby the bed. She has never apologised.
We don’t care. It’s the best wedding night story ever.