There might be some real science behind the chemistry of love with DNA matchmaking.

CBS2's Kristine Johnson spoke to two couples, one who has been together happily for decades and another newly engaged couple.

"We knew fairly early we had something special," Chelsea Fehringer said.

Chelsea and Brian Hudson were introduced through friends.

Max and Donna Feuchter met in high school and married seven years later. It was 32 years in July for the couple.

What makes these couples work, and what makes any couple work?