I recently got married and had the most amazing day I could've imagined. However there was one thing that really made me upset. At my bridal shower, a family friend approached me and asked if she could bring her mother and her two children (both under 4) to my wedding. I said no, we weren't having any children at the wedding, they could come to the ceremony but they would need to leave afterwards. She said no problem. Cut to my wedding day, her, her husband, her mother, and their two kids show up to the ceremony (late). I expect them to leave, as we discussed, but her mother and the two kids stayed. Her mother drank and ate and the kids ran around, one of which kept trying to take away my bouquet during pictures. Her mother also took a seat at a table, which means one of the invited guests was out of a seat. I was visibly upset and spoke to my father about it who suggested I just let it go for the moment. Now the question is do I just let it go or do I speak up so she doesn't do it again for another person's wedding? I personally felt like it was a slap in the face, especially since it was already discussed. Am I just being too sensitive? What should I do?