Looks like they're back on!

One week after cops were called during the couple's breakup argument, Diddy and Cassie are back on apparently as the 46-year-old rapper threw the singer an epic 30th birthday party.

"Diddy won't ever let Cassie get away. He loves her so much," a source tells E! News of the couple's reunion.

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diddy cassie getty images

The star even took to social media to send birthday wishes to his love, who celebrated the day with other famous friends, including Khloé Kardashian.

"HAPPY BIRTHDAY BABY! @cassie I LOVE YOU ALWAYS. GOD BLESS YOU," he wrote.

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