Asalaamu Alaykum
That is so sad whats happening with your friend but she shouldnt self harm herself, her body in anyway. Its a gift from Allah also suicide is forbidden in islam...
Holy prophetic traditions which forbid suicide are numerous as related by Al-Bukhari, Muslim and others. Narrator Abu Huraira, said, the Messenger of Allah, said:
"Whoever purposely throws himself from a mountain and kills himself will be in the (Hell) Fire falling down into it and abiding therein perpetually for ever: and whoever drinks poison and kills himself with it, he will be carrying his poison in his hand and drinking it in the (Hell) Fire wherein he will abide eternally for ever; and whoever kills himself with an iron weapon, will be carrying the weapon in his hand and stabbing his abdomen with it in the (Hell) Fire wherein he will abide eternally forever".
In Sahih Al-Bukhari, on the authority of Abu-Huraira, the Messenger of Allah, said:
"He who commits suicide by throttling shall keep on throttling himself in the Hell Fire (forever) and he who commits suicide by stabbing himself shall keep on stabbing himself in the (Hell) Fire".
Please inform your friend with this evidence...
May a father force his virgin daughter who attained puberty to marry?
Two well-known opinions in this regard are reported from Ahmad:
That he may compel her. This is also the opinion of Maalik, ash-Shaafi`ee, and others. That he may not. This is also the opinion of Aboo Haneefah and others, and is the correct one.
People have differed as tot he reason permitting the compulsion: whether it is virginity, the daughter being under-aged, or a combination of both. The closest opinion to the truth is her being under-aged, whereas no one can compel a grown-up virgin in marriage. Aboo Hurayrah, radhiallahu `anhu reported that the Prophet, sallallahu `alaihi wa sallam, said:
"A non-virgin woman may not be married without her command, and a virgin may not be married without her permission; and enough permission for her is to remain silent (because of her natural shyness)." [Al-Bukhaaree, Muslim, and others]
Thus the Prophet, sallallahu `alaihi wa sallam, prohibits forcing a virgin in marriage without her permission, whether it be her father or someone else. Furthermore, `Aa';ishah, radhiallahu `anhaa, said that she asked the Prophet, sallallahu `alaihi wa sallam, "In the case of a young girl whose parents marry her, should her permission be sought or not?" He replied, "Yes, she must give her permission." She then said, "But a virgin will be shy, O Allaah’s Messenger." He answered:
"Her silence is [considered as] her permission." [Al-Bukhaaree, Muslim, and others]
This applies to the father as well as others. Furthermore, Islaam does not give the father the right to use any of her wealth without her permission, how then could he be allowed to decide, without her permission, how her body (which is more important than her wealth) is to be used, specially when she disagrees to that and is mature to decide for herself?
Also, there is evidence and concensus in Islaam to restrict an underage person’s free control of his wealth or person. However, to make a virginity a reason for the restriction contradicts the Islaamic basis.
As for the difference between the non-virgin and virgin in the hadeeth of the Prophet, sallallahu `alaihi wa sallam, it is not a differentiation between compulsion and non-compulsion; the difference between the two cases is that (a) the former gives her instructions for the marriage whereas the latter gives permission, and that (b) the virgin’s silence counts as a permission. The reason for this is that a virgin would be shy to discuss the matter of marriage, so she is not proposed to directly; rather, her walee (guardian) is approached, he takes her permission, and then she gives him the permission not the command to marry her.
And as for a non-virgin, she would not have the shyness of virginity anymore; thus she can discuss the matter of her marriage, she can be proposed to, and she gives the command to her walee to perform the marriage, and he must obey her.
Thus the walee is command-executor in the case of the non-virgin, and is permission-seeker in the case of the virgin. This is what the Prophet's words indicate. As for compelling her to marry despite her loathing to do so, this would contradict the fundamentals and reason. Allaah ta`ala did not permit a walee to force her to sell or rent her property without her permission. Neither did He permit him to force her to eat or drink or wear that which she does not wish.
How would He then oblige her to accompany and copulate with a person whose company she hates - at the time when Allaah ta`ala has sent between the two spouses love and mercy? If such company happens despite her hatred and repulsion, where is the love and mercy? .
Translated by Aboo `Abdillaah Muhammad al-Jibaalee
wasalam