Rob Kardashian left Florence, Italy BEFORE his sister Kim got married to Kanye West ... and we're told it's because some major family drama went down.
Rob booked a flight from Florence to L.A late last night in a hurry ... and we're told he was in tears while desperately trying to secure a seat.
It's unclear what caused the Kardashian family beef -- but it had to be bad -- considering he missed out on not only his sisters wedding ... but one of the biggest celebrity events of the year.
Bails on Kimye Wedding
After Major Family Clash
5/24/2014 12:46 PM PDT BY TMZ STAFF
Get TMZ Breaking News alerts to your inbox