So how petty would it be of me?

In three weeks we’re taking a vacation as a family for LO birthday. For the last 8 months MIL/FIL weren’t going because “it’s a waste of money and she won’t remember” BUT on the 4th of July my MIL got called out for lying and only wanting to be involved in LO life when others are around. Some how it got brought up that we’re wearing birthday girl/mom/dad shirts on LO birthday. It was originally just going to be the three of us, but the narcissistic individual she is, she convinced my husband it was my way of not including the 20 other family members blah blah blah. So, I found the same image without the “birthday girls parents” and told them order them themselves and that you can have whatever color you want, but I didn’t want anyone in pink. That was the color of the BIRTHDAY GIRL! She then proceeds to cry to my husband about how I told her she can’t have family shirts because she can’t match the birthday girl. Lies and tells my husband she got a different color and come to find out she ordered the same color. Would it be petty of me to order my daughter a different color shirt and not tell her?

So how petty would it be of me?