Will a girl bear sin if she breaks off her engagement to a good, committed man whom she does not love, despite her fear of the impact of her decision on her fiancé and her unmarried sisters, even though she sought divine guidance (istikhara) before the engagement?

"An engagement is a promise between two parties, and either of them has the right to break it. There is no harm in doing so as long as the marriage contract has not been concluded. If the questioner wishes to break off the engagement, she has the right to do so and will not be considered unjust. However, if the fiancé is good, kind, committed, and loves her, it is advisable to be patient and not rush into breaking off the engagement, especially since the pitfalls of others' engagements or sisters' engagements are common.

You have done well regarding Istikhara (seeking guidance from Allah), as it is a declaration of freeing oneself from might and power and knowledge to Allah's might, power, and knowledge, and entrusting the matter to Him. What Allah chooses contains good, even if it appears otherwise. There is no harm in repeating Istikhara.

Marital life does not necessarily have to be based on love, for love can come into existence after not having been there, just as some marriages based on love may fail.

The point is to be deliberate and not rush. After Istikhara, a Muslim should be reassured that what Allah has chosen is good, so as not to fall under the displeasure of not accepting divine decree."