Well, your manager and your boss's manager may KNOW that you had a job offer and is "wanting to leave the company". In addition HR flags you as well, perhaps they make notes about it, especially when they have to counter the offer. This is not really false thinking, this is how it works! Whether they blatantly flag you or they have it in their head, it acts as a "flag". If you are very well-liked and indispensable, it may be a good thing, since they will do what they can to make you happy moving forward. If you are not on the good side, you have to now understand that your manager and your manager's manager are informed that you had the intention of leaving.