In Jainism, the idea is tied to karma and rebirth rather than rigid fate.

• Past-life karma can influence who you come into contact with and what kind of marriage you may have. Your karmic bond (and the souls’ mutual affinities) can play a role in a marriage partner.
• But Jainism does not teach that you are absolutely predetermined to marry a specific person. You still have free will in how you live, how you work on your own purification, and how you choose to develop your marriage.
• Marriage (grihastha dharma) is seen as a noble duty and a path for practicing virtue, self-control, and spiritual progress. The focus is on right conduct, mutual respect, non-violence, fidelity, and supporting each other’s spiritual growth.

Differences between Digambar and Shwetambar traditions on this topic are not about the basic idea of karma guiding relationships, but may appear in how they interpret certain scriptures. The core Jain view remains: karma influences relationships, but it does not make a marriage completely inexorable; personal effort matters.

If you’d like, I can share concise quotes or passages from Jain scriptures that discuss karma, relationships, and dharma, in a clear and respectful way.