Definition [of ṛṇānubandhana] from the The Padma Purana
Runanubhanda Rupena Pashu Patni Suta Aalaya
Runakshaye Kshyayaanthi Tatra Parivedana
Meaning: Every relationship is the result of previous birth bondage. Once the debt is annihilated, there is no relationship and hence the end of suffering in this Saṃsāra.
Is Padma Purāṇa really the source of this verse?