Hooded Justice gay/bi

OK. I’m not homophobic. I get that seeing gay and bi characters and storylines is representation for people who don’t see it elsewhere. Now, in the case of Watchmen, what was the purpose of making Hooded Justice Have sex with Metropolis? How did it add to the story or even make sense when HJ hadn’t shown any such interest prior to that? How did it move the story? Why was it not included other than to shock? I have been super intrigued by the HBO show and have reached episode 7. Can anyone tell me what the point of that is? Otherwise, amazing show.