This is called transgression in du`aa’. Allah says what means, “Call upon your Lord in humility and privately; indeed, He does not like transgressors.” Quran 7:55.

 

Transgression in dua`aa’ is to ask for things which are impossible. Allah is able to resurrect him for her because it happened for Jesus, but Allah supports His Prophets with miracles not because they asked for them, but in order to defy their enemies and invite them to accept the Message.

 

Your friend needs a strong reminder of being patient and expecting rewards from Allah and contemplate on the rewards for people who submit themselves to the decrees of Allah. She needs to strengthen her faith.

 

Almighty Allah knows best.