Ferrari was one of the rappers Rob Kardashian accused his Baby Mama Blac Chyna of cheating on him with.
He was especially pissed because Ferrari posted a photo in which he's wearing Rob's robe while lying in a bed Rob paid for.
Ferarri's back on Instagram and posting more photos that should make Rob's blood boil.
[Related: Blac Chyna considering legal action against Rob Kardashian.]
In other "poor Rob" news, the rest of the extended Kardashian family are worried that Rob's war with Chyna has become a public spectacle and believe it's hurting the family name.
The "family name', huh?