(He is 18 almost 19 and i am 16 almost 17)

me and my boyfriend of 3 years just broke up recently, we’ve been off and on for a couple months now and then the last straw happened a week ago. i’m so heartbroken and clueless. we broke up because he was tired of me “putting my friend first” she has been my best friend for over 7 years and her and i hungout two times in a row a couple weeks ago and he started saying how he is depressed because i never put him over her. and i disagree because a friendship and a relationship are two different things. that’s one reason why we broke up. another reason is because my friend has a guy friend and she brought me a milkshake and her guy friend was with her and my ex boyfriend got upset because he was in the car too and i was talking to him. we would also take another friend of ours which is a guy to the basketball games and my ex boyfriend would be very upset/pissed off with me. i even gave up mine and my best friends friendship for 6 months because my ex boyfriend did not like her. (we became friends again this pas august) the last conversation we had was him asking me to either stop being friends with her or he’s not being with me anymore. i’m just very very confused