I wonder why she's so upset about the cost of the gift?
As almost everyone else has said I assumed that being asked to be a bridesmaid was a great honour - I can remember the days (over here in the UK) when bridesmaids would buy their own dresses or pay to have them made and not receive any gift at all, or even expect a gift! It was just the taking part with a very good friend on a very special day that meant everything.

I think the gifts you've chosen are beautiful and why she would get so upset I found quite peculiar.

Perhaps after some time apart the dust may settle a little and enable you to find out what she actually expected as a present. Maybe she had her heart set on something. Clutching at staws here! I just feel the thing is so sad - you must feel so let down.
{{{Hugs}}}

Lynne