In Jainism, monogamy is generally considered the ethical and socially ideal form of marriage for householders.

Key points:

• A single spouse supports restraint, trust, and responsibility, which align with Jain values.
• Jain household life is meant to be lived with limited desires and controlled conduct, so monogamy is seen as more in harmony with brahmacharya in a practical sense.
• Infidelity, adultery, and lustful conduct are contrary to Jain ethics because they increase attachment, violence, and karmic bondage.
• For monks and nuns, complete celibacy is required, so marriage itself is not part of that path.

So, while Jainism is primarily focused on self-discipline and liberation, for lay followers, faithful monogamy is the most appropriate and dharmic marital way.