Shane Modica isn't holding back when it comes to his ex wife Michelle McGee's obsession with Jesse James.

In a recent interview with The Insider, Modica says that Sandra Bullock's public comments about her happy marriage with Jesse is what drove McGee to come forward with the alleged affair.

Modica also talks about how McGee altered one of their wedding photos...replacing his face with Jesse's!

He goes on to say, "I know how she works, and it was either end up with Jesse and live that lifestyle and still have the money and the fame, or she was going to make money off this one way or another.”

Mission accomplished, Michelle.