Oh wow. I've had this exact thing happen a few times. I'm way in the zone, making thrilling progress on something and perceiving my own state of mind as rather egoless. I see that if I could collaborate with certain people, the result would be incredible. But instead of catching my excitement they get angry, tell me my work is garbage, and say don't speak to them again. It seems obvious that it must be an ego thing, because if the problem was simply that my work was bad, they could tell me nicely. Such people seem very territorial. It doesn't always happen this way. I've also approached people and had them respond enthusiastically. But when you're in that state of pure excitement about the objective, it doesn't occur to you that a colleague could feel threatened, and it can be quite crushing to get slapped back into that social plane.