Am I doing the right thing?

I met my "best friend" 8 years ago. We've had plenty of good times since then, but I'm starting to realize she's toxic. Like one summer I stayed with her family and it ended with her mom locking me out because she thought I'd steal, her dad calling me fat, lazy and immature, and both of them rejecting my gift of flowers because they wanted something nicer. As for her, she's always late, rarely replies to messages, and hasn't talked to me in 2 months because I don't have the money or time to be her maid of honor.

I've deleted her number at this point, but I just need reassurance I did the right thing. I have a feeling she'll pop up in the future like nothing happened and I don't want to fall for it.