fall(s) bad
'Caer(se) mal' is a common Spanish expression but its English translation 'fall(s) bad' is not literal. This is often used to describe a feeling of dislike or displeasure towards someone. When someone 'te cae mal', it means you have a negative impression or you simply do not like that person. This phrase can also imply a sense of annoyance or discomfort with someone's presence or behavior. It's important to remember that it's not necessarily about a strong hate, it's often used for mild dislikes.
Marta doesn't like Juan.
This phrase indicates that Marta has a negative feeling towards Juan, implying that she does not like him.
I don't know why, but I dislike that restaurant.
In this sentence, the speaker expresses a personal aversion to a specific restaurant without a clear reason.
He dislikes his colleague's attitude.
This example shows that the person finds their colleague's attitude unpleasant, leading to a distaste for that behavior.