Is it permissible to commit suicide to purify oneself from sins, especially after causing the destruction of homes and the dispersion of families, and after society has discovered this?

You have committed a grave sin. It is obligatory for you to hasten to repent to Allah for your relationship with this girl and for corrupting her, and to immediately cut off all ties with her if you have not already married her. You must completely abandon the idea of suicide, for your suicide will only increase your sin. Our advice to you is to sincerely turn to Allah Almighty, increase in righteous deeds, and be keen to marry a righteous, devout woman through whom you can become chaste. As for this woman, if her husband has divorced her and her waiting period (iddah) has ended, scholars have differed regarding the permissibility of the corruptor marrying the woman he corrupted. Some Maliki scholars and some of Ahmad's followers held that his marriage is invalid as a punishment for him, while the majority held that their marriage is permissible.