Is OTHER wrong in the post ? POST : So this actually happened in October and I really thought I made the best decision at the time. But it's now January and seeing how things have become, I'm wondering if I was actually so wrong. I'm using a throwaway.

I have an extremely high conflict ex-wife. Last June, I finally got 50/50 custody of my 13 year old daughter. I spent thousands of dollars in lawyer fees and actually moved so she would have her own room. 

So here is the main situation. My daughter and my stepdaughter (who is also 13) are HUGE Taylor Swift fans. They are obsessed with her. Don't ask me how but I managed to get three tickets. These were supposed to be each girl's only birthday gift from us. Both girls were so excited they cried.

A week before the concert my ex calls me and says she got her own tickets for the concert and she was taking my daughter. I was pissed off as hell but it was technically her custody day so I didn't have any way to fight it.

So I offered the extra ticket to my stepdaughter's best friend instead. 

The concert date comes and in the morning I get a call my ex saying that the tickets she bought were fake and that I had to take my daughter instead.

At this point my stepdaughter and her best friend had a sleepover, watching Taylor Swift videos all night and just getting themselves excited out of control. The friend's mother wasn't even in town because we agreed to keep her the weekend.

I could not for the life of me tell this child that she couldn't come and that she had to stay at home while someone else went.

I thought of sending the three girls themselves and wait outside but no one agreed that they should be sent to a concert by themselves.

I had to do the extremely shitty thing of telling my daughter while she was bawling her eyes out that unfortunately she couldn't come this time but I promised her I would take her and only her the next time Taylor Swift is on tour.

Of course, this didn't calm her. We went to the concert. The two girls had a blast while I was absolutely depressed. My phone was buzzing all night with phone calls and texts from my daughter.

I could not salvage the situation by trying to take her to a different city because that was the second last North American date. I could not find tickets.

Ever since then, my life has become absolute shit. My daughter refuses the 50/50 visitation that I fought years for. I tried to get it enforced and the cops ask me if they want to drag her kicking and screaming. Of course not. So it's back to weekend visitations except she doesn't want to them at my house so I see her at my parents' instead.

My daughter has done a total 180 in her attitude towards me. We used to be so close. Now, she is rude and disrespectful to me and will bring up the concert literally every time we meet. She has cried to my parents about how we treat her stepsister better then her, which is completely untrue.

The worst has been my daughter turning her friends in school against my stepdaughter and her friend. They literally had no fault in this. But they are now isolated and bullied in school. My wife and the friend's mother are furious and we've been fighting a lot.

I understand my daughter is upset but this was completely out of line. She has always been a sweet kind girl. This is completely out of character. And I can't even discipline her for it. My ex even refuses to allow me to take her to therapy.

My father told me yesterday that they changed their will so most of the inheritance will go to my daughter because they are afraid I wont be fair when splitting it up.

It's their money and they can do what they want with it. But the meaning behind this move really made me depressed. I love my daughter more than they can imagine.

Seeing everyone pile up and blame me is really making me wonder if I really did such an asshole thing? 

I'm paying the original child support. It will go up because I have my daughter less then before. We are stuck in a house with higher mortgage payments that has an extra room no one is using. And my poor stepdaughter and her friend are being bullied. This breaks my heart the most.

I thought I made the right choice. But maybe I should've broken that girl's heart for the "greater good"? I didn't think it would get as bad as this.

TL;DR My ex said I had to take my daughter to a concert last minute using a ticket I promised to another child. I said no.