A tattling source close to Kim Porter who dishes that the former model is ready to call it quits.

“[Diddy]’s always had a problem with cheating, but he promised Kim that he would change once the twins were born.” The source continued, “what makes this so hard to deal with is that everyone knows what’s going on … She can’t even leave the house without people whispering behind her back. It’s too much to handle”

And Kim may have an unlikely ally in the split, she’s recently struck up a new friendship with Diddy’s other baby’s mother Misa Hylton.

Up until now, the two ladies have had a very rocky relationship. Our insider tells, “Kim started dating [Diddy] while he was still with Misa – so they could never really be cool … but they’ve always been civil towards each other.” The insider continued, “but Misa knows how Diddy is, so she’s offered her support to Kim.”

“Misa is the one person that knows how to beat Diddy. And how many times have you seen [Diddy] lose to anyone.”