Samanjasa Rati (समंजसा रति)

Samanjasa Rati is love for Shri Krishna as the beloved husband, primarily seeking His happiness while retaining some desire for one's own.

Rukmini lovingly serving Shri Krishna as her beloved husband.
Rukmini exemplifies loving service to Shri Krishna as her beloved husband while retaining a sense of right in the relationship.

Samanjasa Rati (समञ्जसा रति | samañjasā rati) is the intermediate category of Madhurya Bhav, in which the devotee primarily desires to please Shri Krishna but occasionally also desires her own happiness.

Nature of Samanjasa Rati

In Samanjasa Rati, the devotee regards Shri Krishna as her beloved husband.

As a wife, she lovingly serves her husband, and she also has a sense of right over her relationship with him. Therefore, although her love is predominantly directed toward pleasing Shri Krishna, she may occasionally desire her own happiness.

This distinguishes Samanjasa Rati from Samartha Rati, in which the desire for one's own happiness is completely absent.

Exemplary Personalities

Goddess Mahalakshmi exemplifies Samanjasa Rati as the eternal consort of the Lord in Vaikuntha.

Rukmini, the principal Queen of Dwarika and a descension of Goddess Mahalakshmi, also exemplifies this love for Shri Krishna.

Madhurya Bhav (माधुर्य भाव)
Madhurya Bhav (माधुर्य भाव | mādhurya bhāva) is the devotional sentiment of conjugal love for Shri Krishna. Madhurya Bhav encompasses all the other Bhav within it. Three Categories of Madhurya Bhav Madhurya Bhav has three categories, distinguished by the degree of selflessness in the devotee’s love:
Sadharani Rati | Love Seeking Personal Happiness
Sadharani Rati is love for Shri Krishna as the Beloved in which the devotee also desires her own happiness.
Samartha Rati (समर्था रति)
Samartha Rati (समर्था रति | samarthā rati) is the highest state of Madhurya Bhav, characterized by completely selfless love for Shri Radha-Krishna. It is also called Gopi Prem. Complete Selflessness In Samartha Rati, the devotee regards Shri Krishna as her Beloved and Shri Radha as her Swamini (स्वा

Reference

Bhakti Shatak - Hundred Gems of Devotion - an in-depth analysis