Questions & Answers about Ella está enamorada.
Because estar is the normal verb used with enamorado / enamorada.
In Spanish, estar enamorado/a means to be in love. Spanish treats this as a state or condition, so estar is used, not ser.
This does not mean the feeling is necessarily short-lived. A lot of emotional or physical states use estar, even if they last a long time.
Enamorada is functioning as an adjective here, meaning in love.
It comes from the verb enamorar / enamorarse, but in this sentence it behaves like an adjective after estar:
- está cansada = she is tired
- está contenta = she is happy
- está enamorada = she is in love
So you can think of enamorada as an adjective describing her emotional state.