Why do I lose my temper if I'm blocked from a community or by a user?

Why do I give even a second thought to the reaction of other online users (who may not even be human) when I get blocked? They're strangers. None of this matters. It will not affect my physical life in any way what so ever. My rational side is absolutely boggled at my emotional side. (additionally, I know I'm not the only one but I prefer to ask questions like this in first person.)