The ekko/blaise beef started because ekko was friends with kawaii girls including shee. Blaise dated paw patrol for a while but had a nasty breakup so shee hates her and ekko being friends with shee hated her too.
She started spreading what amounts to 4chan rrats about her donothon and other personal stories as soon as blaise was hired to kill her chances and credibility because they're all petty insane bitches.