Eh. If there was any more demonstration of that maybe. But I wouldn't find it as an inappropriate relationship if lets say she was single, met him during an interview about the game, and they started dating after it. It would be an issue for me if she just cheated once and only slept with the person once and it was a game journalist. Or if she slept around and had one night flings with several other journalists. She didn't do either of those, she had long term trysts with several men that happened to include a journalist.
If someone finds someone they actually want to screw I am not going to be judgmental because it could be considered conflict of interest. To much judging for the sake of judging goes around today. Did she or did she not screw a journalist for favorable treatment. Doesn't look like it and if she did then she must of sucked because almost nothing back for it. She is just guilty of being a crappy girlfriend and a crappy person all around.
And I hope you are never in charge of a large department, because that company is getting sued. You cannot allow conflicts of interest to exist, because they conflict with the interest of what you're trying to do! A journalist sleeping with a developer should not be writing reviews about a product that developer has produced. I don't care they are sleeping together, but there has to be a clear distinction where professionalism is the most important.
We only know she is guilty of being a crappy girlfriend and person. We also know she is guilty of getting into a situation where a conflict of interest exists. The only people who know if her sleeping with the reviewer had any effect are her and the reviewer.
Even if the only thing her sleeping with the reviewer accomplished was putting his company's (the site he writes for) integrity into further question, he deserves to be fired.
And, unfortunately, this is going to set back female developers. Sleeping with someone to get ahead isn't something men can generally do. Females, especially in software development, can do that with ease. A "high" profile case like this only fuels idiots to continue to overlook contributions women can or would make; and that is a bad thing. They aren't all stupid whores that sleep their way to the top; the majority of them are just as competent as most other males in the industry* and some are far more competent.
*meaning not very much. Working with a lot of different people, my faith in competency of my fellow developers is very low.