Although I personally think your friend is extremely selfish in putting her needs ahead of her child's, It is still her decision on how she spends her money. Whether you go to this wedding or not it is still going to take place. She has already made that decision. You're not going, or anyone else's for that matter, will most likely not change her mind.
I would probably go to the wedding but definately take a very close look at my friendship with this individual.
I would probably go to the wedding but definately take a very close look at my friendship with this individual.