A Twitter spat between Ariana Grande and Kanye West over mental health took a serious turn on Saturday after Pete Davidson, an SNL star and Grande’s ex-fiance, posted a message on social media that some took as suicidal. The tiff between the two musicians began when Grande waded into a feud between West and the music star Drake yesterday. Drake and West and have notoriously had a contentious relationship since at least 2011, according to ELLE.