No le gusta. En español no hace falta poner ella ni él cuando estamos hablando. Por el contexto se sobreentiende. Nadie dice a ella no le gusta él, simplemente no le gusta.

A ella, él no le cae bien. "To her, he himself does not fall well." = "does not like, or care for the attitude of a person" No le gusta. = "[She] does not fancy him." -in a relationship or romantic fashion. That is what I was taught in USA spanish. I don't know if it agrees with international norms.

"A ella no le gusta él" Gustar needs the pronouns 'me,te,le,nos,os,les' in front of the action Eg. A ella le gusta/ le gusta + interest, like / instetrests,likes. A ella no le gusta / no le gusta + dislike / dislikes Hope it makes sense. Un saludo

A ella no le gusta él. The english verb " to like " is often translated as " caerse bien ". And, it has an especial " behaviour" in Spanish . The subject in English becomes the direct object in Spanish.

A Ella no le gusta él.