Because Pisces' heart is actually very fragile and sensitive, they love fantasy and always live in their own ideal world, but there is often a big gap between reality and ideal, so they will have some hesitation and can't help thinking, but in fact they just want to keep that good feeling. For example, they know that someone is evil, but they are still willing to believe that this person's heart is actually good, probably because they are full of emotions.
And cancer. Cancer itself is a very gentle, polite and measured personality. I always feel that they are prying into your thoughts. Actually, it's nothing else. It's just that they don't want to leave a bad impression on each other and don't want to disturb each other. They will feel that they want everyone to like themselves, and they are always confirming each other's feelings in their own way.
So even if it's just a casual sentence from the other party, they may break up and think about it carefully, but many things simply can't stand it. Once they think too much, many things will start to deteriorate, so they will have different meanings in their understanding, so many cancers will always be considered special by others, which is probably the reason.