(Talk it out? They would have to had done so privately for the conversation to be civilized. Tommy being around didn't allow that to be possible. He had a solid mission to antagonize Steve on and only fuel his anger towards Jonathan. Steve's anger had been valid at least. What Jonathan had done had crossed a line. 

How was Steve supposed to react to the pictures? To seeing the two together in Nancy's bedroom.)

I don't think that would have solved anything. 

(But there was a chance that an actual conversation could have cleared up a few things, right?)

And for whatever reason she forgave you anyways for what you did. Like the whole goddamn incident just pulled you two closer like every fucking thing else.