I have a gay relationships in my novel. I want to make it a non-factor, just a relationship as solid and screwed up as any other. It is not the main characters, and I fear that I am fucking up by making a trope of "gay best friend." The novel is not about statements on gay culture and I simply felt it fit and wanted to show I support all forms of love. As a straight male, should I just leave it out. Leave it alone? How do I do this correctly?