If Hayden and Evan were dating it was likely last year when most (if not all of these photos) first came out. There were rumors but never any confirmation. Fact is Evan is seen in photos with a lot of beautiful female celebs. Maybe he is a big time playa, maybe he is just friends with these girls. Celebs do tend to hang out with each other. There are also rumors out there that he is gay, but then again there are rumors out there like that about every black male celebrity, right? I guess I lean towards those who say stop jumping to conclusions just because of some snapshots, but I can understand both sides' views.
As for the Ne-Yo thing that was already debunked by spokespeople for both Ne-Yo and Hayden. They were working on some charity event/project. Yes, they arrived together one night but they did so with a slew of people (possibly agents, family, producers, spokespeople, etc) alongside them. Its not as if they walked into some cozy restaurant alone, holding hands. And for those who think Ne-Yo and Hayden were just trying to keep it on the down low then you must think they are pretty stupid. The worst way to keep a secret is to arrive together at some location with the press already positioned outside the building. Yes, there are couples who in the initial stages deny everything and claim that even though they were photographed together they are just friends. But we learn otherwise over time, say a few weeks later or a couple of months down the road when they finally own up to the fact that they are seeing one another. But when that type of announcement doesn't happen, when all you get is one or two moments in which the media sees two celebs together and nothing ever comes up about it later, its best to assume that nothing happened, especially if that's the official word out of their camps. Its not always the truth but since we can't tell exactly lets give them the benefit of the doubt. Why make claims about them seeing one another?. It smacks of desperation. We're better than that here.