By Breaking Celebrity News Staff

A cutting tweet from Kat Von D. on Monday is adding fuel to rumors that Jesse James cheated on her again, causing them to split up last month.

On Monday, the L.A. Ink star, who is penning a new book, wrote on Twitter:

"No, my next book will not be about my cheating ex. There are way too many positive and inspiring things to write about instead," she wrote, presumably talking about former fiance and infamous philanderer, Jesse James.

When a follower asks: "are you with Jesse or what? Curious!"

Kat bluntly replied, "hell no."

It is unclear whether Kat is confirming that James cheated on her or if she is referring to his infidelities while married to Sandra Bullock.

As Breaking Celebrity News reported last month, a woman who claimed she was dating James while he and Kat were broken up, wrote an angry rant about him on Cheaterville.com.

“You ca