Diddy and Cassie are widely reported to have broken up for good in 2018, with the split becoming public in October 2018, and reps saying they had already been separated for months by then.

Quick Scoop: When did Diddy and Cassie break up?

  • Their on‑off relationship ran for about a decade, with several brief splits and reconciliations.
  • The final breakup was confirmed publicly in October 2018 by outlets quoting Cassie’s representative saying they were “no longer together and haven’t been for months.”
  • Reports at the time also noted that Diddy had been seen with other women around that period, which added fuel to the breakup headlines.

Timeline in simple terms

  1. Mid‑2010s: Short-lived breakups and makeups (notably around 2015–2016, but they got back together).
  1. 2018: The relationship quietly ends at some point earlier in the year.
  1. October 2018: Media and reps finally confirm that Diddy and Cassie have broken up and been apart for months.

So if you’re wondering “when did Diddy and Cassie break up?” for search or forum purposes, the answer most people use is: October 2018 (public confirmation), after having already split months before.

Information gathered from public forums or data available on the internet and portrayed here.