I'll own being a cynic - I see their meeting as a PR staged event that benefitted both of them. After the Golden Globes there was a lot of chatter about whether or not they talked to each other, so they agreed to give the people what they wanted. They staged a casual event that could appear to have "just happened". The photos help them both to stand out as winners for the night since the coverage has to mention that it was back stage because they both won. And they get the benefit of people perceiving than an ex still finds each desirable and still has some degree of affection for the other. It's a win on all fronts PR wise ... other than the mentions that Jen didn't bother with anything to cover her nipples and really should have.