Should I confront? ( again )

Sooo I have this classmate that is also my Best friend
Before she was really kind
Now that I made some friends
She is getting even more distant, became more close minded, and she has a bad behaviour
I confronted her and she was just replying with things like
Ok,??,no,idc
It really hurts me seeing my bestie text me those words I have never heard from her
I think I've made her upset in some way
I asked her if I made her feel left out
Her answer was maybe
Gosh, she was so honest about it but she wasn't sure
I still love her for being my bestie but she isn't acting like her nowadays.
Should I confront her again?? :(
If yes maybe you could give a suggestion