My boyfriend is upset

Because I’m going to Miami for a week with my good friend who is a girl.. I found a round trip for $125 and he’s upset because I didn’t invite him. Why does he think my world has to revolve around him? I’m 22.. I want to explore things.. last year in January he went to Vegas with his brother and cousins for a weekend and broke up with me.. like I don’t get it ???¿

Also he’s upset because I plan to move out of state with my good friends which is only an hour away and he said he won’t do long distance with me.