Nickerson, K., Rein, B., Gottman, J., Stone, R., Davies, R., Petrova, M., & Johnson, A. L. (2026). Should I Stay or Should I Go After Infidelity: Pathways to Relationship Preservation After an Affair Amongst Individuals Accessing Social Media Contents on Post-Infidelity Recovery and Reconciliation. Journal of Sex & Marital Therapy, 1–22. doi.org/10.1080/0092623X.2026.2680162
That's actually the first and only controlled study I've found that addresses at all whether there is actually an empirically demonstrable need to cut ties with an affair partner! Without overselling the work as perfect, the study's authors deserve credit for their groundbreaking work. Interestingly, the paper does not actually conclude that blocking an affair partner is mandatory for marital survival. On the contrary, the paper found that some couples still remained together even when the affair partner was not blocked, provided other repair behaviors compensated for it. For example, one pathway with no blocking but increased help at home still showed a relatively high probability of preservation (about 80%).