She posted a sexy pic of herself in a thong and wrote: 'I cheated on this girl. I told my girlfriend I was going to the movies alone last night and then found this receipt.
'I also shouldn't have given her my Instagram password like a dumba**.' Whitey has denied the allegations saying he "never cheated" on Summers. He said: 'News outlets keep saying that I "allegedly" cheated on my ex fiancée Kennedy Summers. Let me just make it very clear. I never cheated!!'
Summers' rep Zack Teperman said that social media played a role in the split, explaining in a statement:
'While it has its many pros, Instagram, Twitter, Facebook, etc. can also create many issues within a relationship. The negative effects of social media have claimed yet another couple.'
Whitey, who is currently in her third year of medical school, has moved out of the couple's home.