- Never say no - always negotiate.
- If you don't ask, the answer is no.
The reaction you shared is not particularly business savvy. Business relationships (contrary to lots of shitty analogies out there) are not like a friendship/romance.
>Leave or don't. If I'm your manager, the moment you expect me to counteroffer I'm planning on getting rid of you.
Why? What possible rational reason is this your reaction?
> No offense, but you just told me, "Hey, I'm shopping around."
Yes, they did. You just received an extra piece of information to use as a manager. Maybe this requires a re-evaluation of the current situation?
> No offense, but that means, as a manager, I'd better start shopping around, too.
Maybe or maybe not. That is one of the possible outcomes. But, it is not the only one. This is called 'jumping to conclusions'. Always negotiate. If you don't even think to ask, "is there anything that would make this person stay" then the answer is no.
> And, you want to leave a company on your own schedule rather than the company's schedule.
Of course. What wouldn't they?