A good rule of thumb to remember that can help you sort through the s***** people you encounter in life is

Nobody owes you anything. Likewise you don’t owe anyone anything, but it’s good to keep that in mind if you’re ever asking yourself why? Not everyone is a s***** person but half or the majority of people you will encounter in life are s***** (for you) people. And they don’t owe you anything. Sometimes, all is fair. In love and war this is especially true. People all want what’s best for them including anyone who passes you by.

You keep some of these things in mind and sooner or later it will be like you’re made of rubber. The only person you can ever rely on in life for your well being is yourself and possibly blood relatives but possibly not even. Anything me else has a strong possibility of letting you down in some way.