So Upset 😭

So I set the date for my son’s first birthday. I asked everyone in my family and my fiancé’s family to let me know if they had plans in June because I wanted everyone to be able to come. So they gave me the dates they were busy and I chose June 30th. I set that date well over a month ago now but just got a location and a time and made the Facebook event today. I sent out the invites and immediately my cousin texted me that our aunt is having a Bon Fire that my dads side of the family had already planned on attending that’s the same day but about 3 hours away from me. I’m not sure why she didn’t tell me before but she didn’t. And my cousin was like “it’s weird that she didn’t invite you, maybe because it’s far away” but I don’t care about an invite. I just wish she would have told me that she had plans. I had a group chat made where I said “I’m gonna do June 30th, let me know if that’s a problem” and no one said it was. She’s in the group chat. All she wouldn’t had to say was “I have plans” and I would’ve changed it. But instead she didn’t even tell me. So now I’m not sure my dads side is coming. I’m not sure why I’m surprised, they’ve blown off my birthdays, my senior nights, graduation all the big things that happened in my life. None of them came when the baby was born except the cousin who texted me (and her parents and siblings). But I try to give them the benefit of the doubt because there’s a bit of a distance between us. I’m just upset but I’m not changing the date again.