So my FSIL is not happy that her 6 (will be 7 for the wedding) year old daughter is not going to be the flower girl in the wedding. Our niece is very mature for her age and I thought that she would feel too old for the position. We will be having FH's Goddaughter as our flower girl, but since she is not blood relation FSIL is mad. I've spoken with FSIL's daughter about how she is still going to have a very important job, passing out programs before the ceremony and passing out our "fairy wands" after the ceremony. She will be in the processional walking with her grandpa (FH is going to be escorting his mother down the aisle), and that she is still going to have a pretty dress. Every dress I send to FSIL she doesn't like she says that I'm trying to make her daughter look fat and that she's not going to want to pass out "stupid papers" anyway. And my feelings are really hurt because i truly made every effort for our niece to feel included and like she had an important part in our day, and her mom is being very rude.
Am I in the wrong here? Or is she being ridiculous.