Most Helpful Girl
Can i give you an example from my experience? my ex had a best friend. He had a fase where he talked to her more than he did to me. I was jealous. I wanted all of his attention (or at least i wanted more than he gave her)
at some point she started really poking at me. saying stuff to try and make me jealous or sabotage the relationship or something. She didn't succeed but that made me hate her.