What is the ruling on a girl remaining in a relationship with a young man who promises to marry her for 10 years, and will the young man be penalized for not fulfilling his promise?

Haste in marriage is commendable for both genders. Rejecting a suitor on the pretext of another person's promises is a mistake, especially with the prolonged waiting period. Therefore, we advise accepting marriage from someone whose religiosity and character are pleasing, taking into account the advancing age. Any unlawful relationship with this man or any other non-mahram must be severed.