Fish in the Washing Machine
I didn't see "people". I saw a PERSON in particular that kind of revels in your discontent because they are discontent themselves.
Now as for the murky water, that came across to me as a representation of your home. Think about it. Your clothing is the closest thing to your skin, right? If the washing machine water is dirty, then your clothes will be dirty, then so are you by transference.
With that being said I would encourage you to evaluate your health choices, habits and try your best not to allow negativity at work or with "so called friends" determine how you feel and act once you get home.
Don't allow negativity in any form to contaminate what is closest to you including how you think of and treat yourself.
I encourage you and your husband not to allow the stress of your work to dictate your home life or relationship as much as it can be managed. Release it all before you enter your home.
Eat healthy, get rest, go out on dates, exercise, communicate, do some spring cleaning. Get your home in order ("drain the dirty water") then there is no where for that fish("negative energy") to live.
Fish are slippery. With no environment for it to thrive in, it will die and be much easier to remove. Hope this helps.