If it interests you, write it. Will it have as many readers as a story where L/C are the main focus? Probably not, but most stories, even for the narrowest of niches, have readers.
Last summer, I finished Learning to Love and wrote Learning to Love: Lucy's Story - the whole thing was from her POV and Jimmy was the second prominent character. It didn't have as many readers but I loved writing it. LtL was traumatic at times for L/C but for Lucy during the same time period was mostly just a love story with Jimmy and it was a very nice change of pace for me.
So write what you're inspired to write. Be aware that you often limit your audience but there are definitely those who will read it if it's well-written etc [and I don't think you have any problems there
].
So we get to see it... when exactly?
Carol