Was it "Perfect Couples"? It starred Christine Woods and Kyle Bornheimer. It centered around their relationship with them and their friends who were also in a relationship.

Maybe Modern Family?

Hmmm need more details dear.

your description doesn't really narrow it down

i watched a tv show for free on hulu about two years ago and it followed sevral couples and how they were are related and connected but if i remeber one couple was kind of the main couple