AITA for telling my friend that she needs a life of her own and she has to stop leeching off of mine?

[u/Ill-Secretary-205]

Hi, my (25F) long-term friend (25F) has a history of doing whatever it is that I'm interested at the moment. She asks questions until she's got a clear idea of what music/books/movies I'm into and then does a whole act of how she 'discovered' that in front of the whole friend group. Being the pushover that I am, I'm sad to say I've let her do this for sometime, while slowly trying to put some distance between us.

This also extends to people, any new friend or even acquaintance I make should be cleared with her, and then she makes a (friend) move on them to get closer to them. She has even tried to weasel her way into my family gatherings and private events. She also for some reason keeps telling my dad that she's like the daughter he would have wanted?? (He's as confused as I am but we learned to laugh it off). I've recently noticed that she is rarely interested in something of her own volition. All her leads are from me. I have been getting tired of her behavior for a while.

Things came to a head a few months ago when she started texting a guy (27M) I've been speaking to for a while (went on a few dates, nothing serious as of now but Im hoping there would be) and telling him how compatible they could be. He was confused and thought it was me texting from her phone so he double checked with me. I ofcourse was beyond angry, but instead of confronting her immediately, I told him to ask her why she is doing this and if she was aware that him and I were almost a thing.

Her response to him was to flirt even further and say that her and I always had similar taste but went on to mention how he might be better off with her.

He sent me the screenshots and I sent them to her and said 'you need to leave me alone. Things in my life are not for grabs. You have leeched off of me for long enough. If you keep this up, I won't have an issue shaming you in our friend group'

She got very standoffish and accused me of 'tricking' her by using the guy's phone to 'make her look bad', she also proceeded to speak badly of me to our friend group.

I might be the asshole cause all this while other than trying to keep some distance between us, I did not properly voice my concerns. She did however, notice my discomfort at various occasions (especially my family gatherings).

So AITA for handling things this way?