Why did my boyfriend start a fight about this?

So, my boyfriend will vacate his current apartment and move to his dorm room permanently in a couple of weeks. I've been in my hometown for a few weeks now and he wants to come and visit me in the 15th of July (even though I will be back in the town our university is in, in the 20th of July). I told him that I would love for him to visit me but that he would not be able to stay in my family's place. He started to freak out and get angry at me, asked me if I even asked my parents. He gradually got angrier and told me to hang up. Why is he freaking out about such a trivial thing he is going to see me five days later anyways? Am I missing out on something? Help a girl out.

Why did my boyfriend start a fight about this?
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