God bless you sister. Let me help you out. I suggest you ask your Christian friend to read the book of Job. Many times GOD puts us through trials and tests our faith. As for being sexually abused, I cannot answer that honestly. There are many factors that can be involved into why such things happen.
"She still loves God very much but she can't get to read the Bible or pray"
That is the problem here, a major one. She is not reading the Word of GOD, absorbing spiritual food nor is she communicating with GOD (prayer). She cannot expect deliverance unless she faithfully prays and asks for healing, deliverance, comfort and all in Jesus' name.
Prayer is necessary
Psalm 143:1
O LORD, hear my prayer, listen to my cry for mercy; in your faithfulness and righteousness come to my relief.
Romans 12:12
Be joyful in hope, patient in affliction, faithful in prayer.
James 5:15
And the prayer offered in faith will make the sick person well; the Lord will raise him up. If he has sinned, he will be forgiven.
James 5:13
Is any one of you in trouble? He should pray. Is anyone happy? Let him sing songs of praise.
Jude 1:20
But you, dear friends, build yourselves up in your most holy faith and pray in the Holy Spirit.
GOD is Holy. We are sinners who need to Trust Him faithfully.
Proverbs 3:5-6
Trust in the LORD with all your heart and lean not on your own understanding; in all your ways acknowledge him, and he will make your paths straight.
During Job's trial, says this
Job 1:21
"Naked I came from my mother's womb, and naked I will depart. The LORD gave and the LORD has taken away; may the name of the LORD be praised."
Sin = Death
Romans 3:23
for all have sinned and fall short of the glory of God