Brandon (my SO) got mad because Bree and I will be going to my parents church festival without him…

Brandon (my SO) got mad because Bree and I will be going to my parents church festival without him today since he's working... he told me I should've told my mom no , but Bree and I haven't seen my mom or my siblings In a month so i accepted the offer to go. It's like 10 minutes from our house . He's being a baby for no reason about the whole situation and ended the phone call with "k well I'll text you later".... like no don't text me at all if your going to be a little boy for no reason. I'm tired of never leaving the house and him always being able to do whatever he wants to do .