In romance novels, not all romance novels but a good portion of them, the couple breaks up at some point in the narrative.
There is no standard romance. There is a "formula" of sorts and there are certainly expectations in the reader, but the genres allow freedom and creativity. There is a reason there are so many subgenres.
"O Romeo, Romeo, wherefore art thou Romeo?"
If you know me, you know I love romances. Plain and simple. First love stories especially. There is something about first love that just strikes a chord within me as the reader. No Filter is just that, my cup of tea – a first love, contemporary, coming of age story. This had all of my favorite YA literary elements in one. Needless to say, I read this in practically one sitting (with minor breaks to refresh my cup of tea).