"The Golden Bachelor" star Gerry Turner received a bone marrow cancer diagnosis in March, which affected his decision to end his relationship with Theresa Nist.

"I wish him the best," Nist tells PEOPLE of what she'd like to say to Turner. "And that I know that he was in a very difficult situation and that good things will come to him"

In an exclusive conversation with PEOPLE, the 'Golden Bachelor' alum Theresa Nist gives her side of the story and why her ex-husband Gerry Turner's cancer diagnosis wasn't a factor in her decision to divorce.