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Relationship Stress and Suicidal Ideation: A Daily Diary Study.
Heather A Love1, Chuong Bui2, Preston Morgan3
1Human Development and Family Studies, University of Alabama, Tuscaloosa, Alabama, USA.
Journal of Marital and Family Therapy
|March 27, 2026
Summary
Relationship stress daily increases suicidal thoughts by intensifying feelings of being a burden. This daily diary study highlights the immediate impact of relationship stress on suicide risk factors.
Area of Science:
- Psychology
- Mental Health
- Suicidology
Background:
- Cross-sectional studies limit understanding of daily relationship stress and suicidal ideation.
- The Interpersonal Theory of Suicide provides a framework for examining these associations.
Purpose of the Study:
- To investigate the daily associations between relationship stress and suicidal ideation.
- To examine the role of perceived burdensomeness and thwarted belonging in this relationship.
Main Methods:
- A 10-day daily diary design with 84 adults in romantic relationships.
- Multilevel modeling and mediation analyses were employed.
Main Results:
- Higher average relationship stress correlated with increased burdensomeness, thwarted belonging, and suicidal ideation.
- Elevated daily relationship stress led to same-day increases in burdensomeness, thwarted belonging, and suicidal ideation.
- Perceived burdensomeness mediated the link between daily relationship stress and suicidal ideation.
Conclusions:
- Relationship stress acutely contributes to suicidal ideation by heightening feelings of being a burden.
- Couple-focused interventions targeting relationship stress and burdensomeness may mitigate suicide risk.
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