...Be it in human relationships, work or even wedding partners, and it is no overeaggeration. In the modern society, as it is formed, everything is governed by dynamics. I could go ahead and state a vast number of examples where this is true, but I will offer state only a select set of core circustances where this may apply because I respect both your time, and mine.
1.) Your 'friend' unloading to you all of their 'everyday drama' without ever, or hardly, listening to anything concerning you. And whenever the latter applies, it always feels as if they never did...
2.) Your girlfriend or boyfriend, always eyeing up other people of the opposite sex. Talking to them, flirting etc, while you've stated this annoys you...
3.) ...Or even your boss at work, or even more specifically, their children talking harsh to you. Being unfair, placing your hard-earned bonus of your extra work in their hands, or even threaten to lay you off in every opportunity presented to them.
Each and single one of those instances, which as presented, are only limited, simplified examples, are practical displays of a power dynamic placed against you from a person who realizes had a leveraged position against yours, and below I will tell you why:
In example No.1 : Your toxic friend has realized you want to be social, but you are also a kind personality who will listen to everything they have to unload, even if it troubles you. That is because you are considerate, and like to offer back when something is procured to fulfill your need, or are sympathetic. Those are nothing less than virtues, but emotional vampires know how to bend such common elements, such as kindness, in their favor and abuse a displayed tolerance.
In example No.2 : Your affair realizes they are center of your world, are too emotionally tied, or believe can replace you much easier that you can, therefor the scale is tipped against you in the relationship. At this point, every ounce of respect for you is gone, and the same applies for every word you say, and similarly every request.
In example No.3: Your boss at work sees you as nothing more than a tool. Their children who tend to be even more spoiled see you as nothing more than a nuisance that gets in their nerves whenever even a fraction of your interests collide... that is of course, whenever they are present at work... But none of the aforementioned people see the value you steadily bring to that company as your value, but more or less as the value they are entitled to have by default. The wage they give to you, is practically an unwanted ,but needed consequence for maintaining your labor for them.
Why does nobody tell you the dynamic is tipped against you... Because they want you not to be aware, base the false behavior in other factors, or just want you confused. Because if you do know it is due to power dynamics, you can then** do something to change it**, or throw the scale away alltogether. And that does not serve their interests. So please, promise to yourself... Whenever you think such an imbalance exists. When you feel you are not respected, you will throw that scale away, or show the other side who you are.. you are much more capable than you think.
And next time, do yourself the greatest of goods, and appear strong and healthy in the first place, applied in anything you want to do with your life. It's unfair, but people do mostly judge by appearances or extended skillsets. Establish a healthy power dynamic with the people you want to surround yourself with. It is the most trusted way to respect and be respected out there, so to build aspects where such dynamics shouldn't be applied at all - with a person who realizes the gravity of the sentence previous to this.
Cheers.