My boyfriend's best girl friend jealous of me, is this normal?

my boyfriend has a friend but in the past they were acting lovers so that nobody could text to them but when we started dating they argued about this issue. i said lets introduce me to her and we are gonna meet soon. i dont have any possitive thoughts about her since she is jealous of me which is awkard to me. i am his best friends girl friend why she is acting this way. is she okay? do you think she has feelings for him or its just a normal thing?

My boyfriend's best girl friend jealous of me, is this normal?
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