What Dr. Fisher says:
"Jessica Simpson was famous for keeping her virginity until her wedding night. "Builders" are far more likely to do this than any other type. They are less sexual, more traditional and family focused. Jess could also be a "Negotiator" -- romantic, expressive and interested in "looking in" and exploring her identity. Jess' former flame, John Mayer, is an "Explorer", evident in his creative and imaginative lyrics and his collection of tattoos. He is irreverent and autonomous, and probably too creative, curious and energetic for Jess. She's much better off with her current man, Tony Romo, who is much more grounded and traditional, most likely a "Builder" like she is. They are both probably looking for a "help" mate and life partner rather than a playmate, and most likely share similar beliefs about home and family.

NEXT: Britney Spears & Kevin Federline >>

Long-Lasting Celebrity Duos slide show >>