Most people are troubled by the rivet effect. If you make 10 million in a bull market and then lose 5 million, it can make you feel intoxicated and frantically want to make the money back. Even if a coin drops from 100 to 10, which is still objectively expensive, many people will still buy the dips. The same applies to relationships. If someone treats you very well, you can become depressed if things go even slightly worse later on, even if the objective conditions are still very good.