Your employer is in multiple relationships at the same time and you are one of them.
While you are committed to them — showing up every day, putting in the hours, investing your energy, building their business — they are simultaneously interviewing your replacement, exploring automation that could eliminate your role, cultivating other employees who might do your job for less, and making business decisions that have nothing to do with your wellbeing.
This is not cynicism. This is just how employment works.
The company's primary obligation is to the business, to shareholders, to growth, to survival. You are a means to those ends. And the moment you stop being the most efficient or effective means, the relationship changes — regardless of how loyal you've been, how many extra hours you've put in, or how much you've sacrificed.
We've all seen it. The person who gave twenty years to a company, passed on other opportunities, stayed through the hard times — and then got laid off in a restructuring with two weeks' notice and a form letter.
The lesson isn't to be a bad employee or to stop caring about your work. The lesson is to stop putting all of your career equity into one relationship that was never designed to be exclusive.
Keep your skills sharp for the market, not just for your current role. Maintain your network outside of your company. Know what you're worth and what the market would pay you. Stay visible to people outside your organization. Have a sense of what your next move would be if you needed to make it tomorrow.
Your employer is not your career. Your employer is a chapter in your career. Treat it accordingly.