Who would you choose?

well i need to make a decision either choose my boyfriend's last dance performance at school cause this year is his last year of high school + his different school then mine and we only meet 2-3 months once or my friends's farewell + birthday party cause he will be transferring to other school on april but we would meet each other every saturday for jamming..so which one??? my boyfriend is very excited but my friend dosen't mind if i don't come but i feel bad if i don't go either one helpppppppp :(