There is a lot of music about falling in love, but not much about getting married, and almost nothing about being in love while married.
To illustrate what I mean, listen to this album of music about happy married monogamy. It is The Man I Love, by Peggy Lee. The year was 1957. Frank Sinatra conducted arrangements by Nelson Riddle — the best of that era.
This was rare even by the standards of the 1950s. Much of the popular music of that time — such as Frank Sinatra’s other albums — was really about unmarried serial monogamy, or “dating,” in a 1950s-style Playboy/James Bond manner. In other words, it was subversive. Today, The Man I Love is both alien, and also, comfortably sweet. It might help you kick the Taylor Swift habit. That stuff is toxic poison.
Find it from whatever music source you use. Here is a link from Amazon