Culture Cafe 'The Bachelor' Chris Soules has chosen: What makes relationships last? (+video)

Season 19 of 'The Bachelor' concluded with yet another proposal. How likely is it to last, and what factors predict successful marriages?

Rick Rowell/AP/ABC/File

On "The Bachelor"’s Monday night Season 19 finale, Chris Soules proposed to Whitney Bischoff at his family farm in Iowa.