Womack shocked and angered many fans of the show in 2007 when he rejected both finalists, Jenni Croft and DeAnna Pappas.
After the show, he began seeing a therapist to work on what he describes as commitment-phobia.
When ABC called to see if he was interested in joining the show again, he was surprised.
Even with the opportunity for a do over, Womack says he was prepared to walk away again if he didn't feel he found the right girl.
The 15th season of "The Bachelor" premieres Monday night.