Hi giddy. Happy birthday! I'm sorry for your boyfriend. If this is his first offense talk to him and see why he wanted you to be sad. If this is not the first time he did this, then you might consider your options and break up with him..
Try to communicate very clearly i. Your relation.
Happy Birthday. Hey don't be upset over a fight. Everyone's got a reason for their actions. Enjoy your day and talk it out rather overthinking the situation.