No tears left to cry. There may be just a few left for Ariana Grande after her sudden split with her ex-fiancé, and SNL cast member, Pete Davidson. The couple called it quits after getting engaged in June last month, after a whirlwind romance. The last year and a half have been anything but sweet to Grande, 25, who was left traumatized after a suicide bombing attack during her concert at Britain’s Manchester Arena in May of 2017; Grande suffered from PTSD after the horrific event, struggling to adjust at home when she returned from tour. This past September came with another emotional trauma, when Grande’s ex-boyfriend, Mac Miller,…