In Vedic astrology, determining the fidelity of a love partner is a sensitive topic, and while astrology can offer some insights into relationship dynamics, it’s important to approach this with care and consideration. Astrology provides tendencies, not certainties, and the behavior of individuals can be influenced by many factors, including free will and life experiences.

1. Houses in Focus

• 5th House (Romance & Love Affairs): Represents love, romance, and the early stages of relationships. This house gives clues about the nature of romantic relationships.
• 7th House (Marriage & Partnerships): Governs long-term partnerships, marriage, and committed relationships. The condition of this house is crucial in assessing relationship stability.
• 12th House (Secrets & Hidden Matters): Represents hidden matters, secrets, and things that are not easily visible. A strong influence here can sometimes indicate hidden relationships or affairs.

2. Planetary Influence

• Venus: Represents love, affection, and relationships. The placement and condition of Venus in your chart, and in your partner’s chart, are significant indicators of relationship dynamics.
• Mars: Governs passion and desire. If Mars is afflicted or placed unfavorably, it can sometimes indicate issues related to fidelity, especially if it influences the 7th or 12th house.
• Rahu and Ketu: These shadow planets can bring confusion, secrecy, and unconventional desires, especially if they affect the 7th or 12th house. Rahu’s influence can sometimes indicate obsessive or secretive tendencies.
• Saturn: Saturn represents stability, commitment, and duty. A well-placed Saturn can indicate loyalty and long-term commitment, while an afflicted Saturn might indicate challenges in maintaining a stable relationship.

3. Afflictions and Yogas

• Afflicted Venus or Mars: If Venus or Mars is afflicted by malefic planets (like Rahu, Ketu, or Saturn), it may indicate challenges in love and relationships, including potential infidelity.
• Kalatra Dosha: An affliction in the 7th house or its lord can indicate difficulties in marital or committed relationships.
• Influence of Rahu/Ketu on 7th or 12th House: If Rahu or Ketu strongly influences the 7th or 12th house, it may indicate secrecy or unconventional behavior in relationships.

4. Dasha Periods

• The planetary periods (Dashas) are crucial in understanding the timing of events. A challenging Dasha period involving the 7th house, 12th house, Venus, or Mars might indicate difficulties in relationships, including potential issues with fidelity.

5. Synastry (Compatibility Analysis)

• Comparing your birth chart with your partner’s chart (synastry) can provide insights into compatibility, the likelihood of trust issues, and the overall dynamics of the relationship. Key factors include the placement of Venus, Mars, the 7th house, and mutual aspects between the charts.

Summary

• Signs of Potential Issues: Afflictions to the 7th house, Venus, or Mars, or strong influences from Rahu/Ketu on these areas, might suggest challenges in maintaining fidelity in a relationship.
• Indicators of Stability: A strong and well-placed Venus, Saturn, and 7th house lord usually indicate loyalty and stability in relationships.

However, it’s essential to remember that astrology provides tendencies, not definitive answers. The behavior of individuals is influenced by their choices, circumstances, and personal growth.

For a more accurate and personalized analysis, I would need your birth details (date, time, and place of birth) as well as your partner’s details. This would allow for a detailed examination of both charts and their interaction to provide insights into your relationship dynamics.