My Dad and my step mom were split for my birthday two years ago (turned 21), and my Dad was seeing someone. It was his idea to go out for my birthday and invite some friends. This was sorta normal, he had done it two years in a row.
I only invited my best friend and her boyfriend (aswell as DH, obviously) because I didn't want it to be expensive for my Dad.
We show up at dinner, and he walked in with his new girlfriend. I thought, "ok, wierd, but go with it.." They continued to order wonderful meals and I had told my friends prior to dinner to order as if they were paying, just incase.
My Dad's girlfriend showed off her new diamond earrings my Dad just bought her. I was a little mad because they hadn't been dating longer than 2 months. Whatever
When it came time to paying for dinner, he said "Well here is our portion of the meal." and he layed down $40! Their meal was an easy $60! So not only was this HIS idea, but we all had to pay for ourselves, me included!
Needless to say, I was embarassed because I had friends along, I was angry as hell because I had to pay for him and myself, and I got NO card, NO gift, and not even a Thank you for picking up the rest.
But the girlfriend got Diamond Earrings.
He obviously doesn't know how I feel to this day.