Behavioral economics dating
After all, you're not his girlfriend, so he doesn't precisely owe you an explanation, and it saves him an awkward and possibly painful conversation, since he probably does like you. Then there were a few days of agonizing over whether it would be rude or awkward to call you--and maybe it would be easier for him just to wait for you to call him.
You see, dating is like an investment in your penis, and just as a smart investor would get out of a poorly performing investment position, a smart guy will get out of a poorly performing dating situation."Guy 2:"a) Not that into you.“Online dating sites assume that people are easily described on searchable attributes, they think that we are like digital cameras, that you can describe somebody by their height, and weight, and political affiliation and so on, but it turns out that people are much more like wine.That when you taste the wine, you could describe it, but it’s not a very useful description, but you know if you like it or don’t." talk, there's really no need to break anything off.
In that case, just not calling seems kosher.b) Met someone else.Dear All The Single Ladies, you know how sometimes you're seeing a guy, and he's all about it, and it's going really well, and then all of a sudden he apparates off the face of the earth without a word and you're like, "What the sh*t? Or, in the words of my friend Emily via GChat--Emily: why??