My mum's friend said she had two spare tickets for a musical production (won't say which one) and she was wondering if me and my dd would like to go.
I offered money for the tickets but she said it was her pleasure and that they would only be going to waste otherwise.
She suggested we could meet up before the performance and explained that she was also going along with her grown up (late 30s) dd. She said we could travel up together but not to tell the dd where we had got the tickets. She said this was because she had originally got the tickets for two friends the dd didn't like and she wanted to keep the peace. I was a bit 
but agreed.
She then told me to say that I had booked the tickets earlier and to act all surprised when we ended up sitting together!
I felt really uncomfortable (I'm not a good liar) and as she told me this on the way to pick her daughter up it was too late to politely refuse the tickets (my 6 year old dd was in the car and v excited about the show). I felt like I had no choice but to go through with the charade.
The theatre was packed and so it looked v suspect when I had to pretend to be surprised that we were in the same seats. The dd seemed to be questioning her mother about it. My mum's friend kept up with this lie and encouraged me to embellish it further: 'You booked in January, didn't you princess? Did you get a choice of seats?' etc. V uncomfortable and odd!
Then at the interval, the dd upped and left without saying goodbye to anyone. My mum's friend said she had decided the show wasn't for her. As we had all come in the same car, this meant the dd had to walk for 30 mins to get to a tram station. She had been perfectly friendly beforehand. My mum's friend said her dd was often like this.
I was v appreciative for the tickets and dd and I enjoyed the show, but ABU to find the whole situation v odd?