Girls opinions/advice please?

this might seem immature but im fed up, my boyfriend is the jealous type.he dosen't let me get on FB, he dosen't get on either though, i think is because he thinks i flirt with other guys, i really want to get on especially since i don't have my phone right now and i will soon be leaving on a family trip, my bf gets mad when i bring it up. i really like him so i don't want him mad. what do i do or say to him to convince him into letting me get on