Is my best friend jelouse of me?

Ok so I have known my best friend for4 years we use to Tel eachother everything but not since I got my boyfriend witch we both have known him for 3 years den after I Tel her were going out she wants to start flirting with him n always saids bad dings about me she's really pretty but has low self asteem she's jamacin n Puerto Rican n I'm jus Puerto Rican.one day out of nowhere she looks all sad n tells me y wen I like a boy they like me baq n I Tel hur it isn't true den i remember in 6 grade we both had a huge crush on dis boy n he started liking me but the ding is my friend ddnt start liking him until i told hur like everytime i say i like sumthing or sumone den she does too its so annoying.n she gets mad at our other friends becuz they follow me n she starts yelling at them saying they r followers but yet she wats them to follow her but they don't n now i dnt talk to hur on the fone at all cuz wen i call hur she stays quiet ll