Is it wrong that I dont like my BFF?

Weve been friends since middle school, but over the past few yrs. Ive changed so much and shes just the same. She hasnt evolved. Were so different now that i dont enjoy my time with her. I try not to spend too much time w her bc i dont want her to piss me off to the pt. Where we fight. But we disagree on everything!! What would u do???