Synonyms of 'turn against someone'
to stop liking (something or someone one previously liked)They turned against me when someone said I'd been insulting them.
become hostile to,
become disillusioned with,
become disenchanted with,
take a dislike to,
become unsympathetic to
Copyright © 2016 by HarperCollins Publishers. All rights reserved.
Thesaurus for turn against someone from the Collins English Thesaurus