[123123as1asd12]

I think both of you are wrong.

One, you worked for them then took their idea (which they took form someone else) and made an open sourced better version of it. I don't care if you did not use any internal information, it looks like you did to everyone else.

Two, Why the hell did you share it with him? to rub it in?

Three, actually I'm on his side, even though he is acting childish.