I'm writing a story, it's not focused on romance, but that's an important part as well. The point is that I have two characters and I ended up ("accidentally") seeing chemistry between them, they have a good dynamic. With that, I really want to know how to develop a romance between them without being obvious.
How can I make the chemistry be perceived without giving evidence that they will be a couple in the future? I want to do it in a way that the reader can see the chemistry and the romantic potential that they have, so that they come and ship the couple without having any certainty that they will be canon someday.
I want the reader to have the impression that it will probably never happen, but that he still has a tiny spark of hope. As if thinking, "I know it will probably never happen, but I ship it anyway.", Anyway, what I meant by that, is that the idea is to make the reader think that he is deluding himself, and at the same time not (I think it's kind of confusing, sorry). Exemplifying would be like Romanogers (Marvel), Finrey (Star Wars), Stydia (Teen Wolf), or even Scalia in 6A of Teen Wolf.
So I ask again, how to develop a romance that is not obvious? How can chemistry be perceived without giving evidence that they will be a couple in the future? The funniest thing is that, unintentionally, I ended up shipping them, so I'm hoping they'll be together!