Seinfeld- Jerry and Elaine are exes and breify get back together at the end of season one
Friends- lots of romantic entaglements but mainly Chandler/Monica, Ross/Rachel, and Joey/Rachel
How I Met Your Mother - two of the main characters are a steady couple, the other three are a love triangle
Big Bang Theory- by the end, it’s three couples and one single guy
Any shows like these where the main characters never date each other or hook up with each other?
Harry and D’Arcy dated for a few episodes (maybe only one or two, I don’t recall clearly). There was a bit of teasing that Asta and Harry would be a thing at some point but thankfully that never materialized.
There were definitely romantic relationships with side characters - Sheriff Mike had a couple, obviously the mayor and his wife, Harry and the bird lady, Liz had a boyfriend (though he rarely appeared or was even mentioned), plus D’Arcy tried a few times to find love and Judy… had several flings?