Scientists Say Different Forms of Unhealthy Love May Require Different Approaches

A new systematic review suggests that not all unhealthy romantic attachments are the same. Manic love, emotional dependence, and love addiction appear to represent three distinct patterns, each with its own psychological characteristics and relationship outcomes.

Most romantic relationships promote well-being, but for some people they become obsessive, compulsive, or overwhelmingly dependent. Until now, researchers have often used overlapping terms to describe these patterns, creating uncertainty about whether they represent the same phenomenon or separate psychological constructs.

How the Review Was Conducted

The study, led by Magdalena Sánchez-Fernández at the University of Cádiz in Spain, reviewed decades of research on problematic romantic behaviors. The researchers searched four major scientific databases and identified 102 eligible studies examining different forms of unhealthy romantic attachment. Published in the Archives of Sexual Behavior under the title "Problematic Love Behaviors and Correlated Factors: A Systematic Review with Subgroup Meta-Analysis Including Gender/Sex Moderation," the review highlights the importance of moving beyond broad labels and recognizing that unhealthy romantic attachment can take several distinct forms.

The final analysis included 55 studies on manic love, 34 on emotional dependence, and 13 on love addiction. Sample sizes ranged from 63 to 3,375 participants, while the proportion of women varied from 0% to 94.2%, allowing the researchers to explore potential gender-related differences.

Using meta-analytic methods, the team examined how each form of problematic love was associated with factors such as self-esteem, attachment style, substance use, behavioral addictions, jealousy, and relationship satisfaction. They also assessed whether the gender composition of the samples influenced these relationships.

Different Profiles for Unhealthy Love

The review found that emotional dependence, manic love, and love addiction should not be treated as interchangeable concepts. Each pattern was associated with a distinct combination of psychological traits and relationship characteristics, supporting the view that they should be studied and addressed separately.

Relationship satisfaction differed across the three forms. Emotional dependence was positively associated with relationship satisfaction, suggesting that highly dependent individuals may still perceive their relationships as fulfilling despite unhealthy levels of attachment.

By contrast, manic love was significantly associated with lower relationship satisfaction. This form of attachment was characterized by intense emotional highs and lows, excessive jealousy, and persistent preoccupation with a romantic partner—patterns that may undermine long-term relationship stability.

Love addiction displayed a different psychological profile. It was strongly linked to anxious attachment, with affected individuals showing greater fear of abandonment and a stronger need for constant reassurance. Unlike love addiction, anxious attachment did not emerge as a defining characteristic of emotional dependence.

Links to Addiction, Violence, and Self-Esteem

Among the three patterns, emotional dependence showed the broadest range of psychological and relational associations. It was linked to alcohol and substance use, behavioral addictions, and both experiencing and perpetrating violence within intimate relationships.

Low self-esteem emerged as a common feature of both emotional dependence and manic love, suggesting that individuals with fragile self-worth may become overly reliant on romantic relationships to maintain their sense of identity. This vulnerability may also make it more difficult to leave unhealthy or abusive partnerships.

Behavioral addictions, including problematic internet use and gambling, were associated with both emotional dependence and love addiction. According to the authors, similar mechanisms—such as poor emotional regulation or impulsive coping strategies—may underlie both compulsive romantic behaviors and other addictive patterns.

Gender Differences in Problematic Love

The meta-analysis also identified several gender-related differences. Studies with a higher proportion of women showed stronger associations between manic love, jealousy, and lower relationship satisfaction, suggesting that women experiencing manic love may be particularly vulnerable to emotional distress within relationships.

Conversely, the relationship between love addiction and anxious attachment was stronger in studies with a larger proportion of men. This finding suggests that when men develop addictive patterns in romantic relationships, these behaviors may be more strongly driven by fear of rejection and emotional insecurity.

The authors emphasize that these findings do not indicate that either gender is inherently more susceptible to problematic love. Instead, they suggest that unhealthy romantic attachment may manifest somewhat differently in men and women, with different psychological factors playing a more prominent role.

Rethinking Pathology and Future Research

Sánchez-Fernández and colleagues argue that these patterns should not automatically be classified as psychiatric disorders. Instead, they describe them as clusters of maladaptive thoughts, behaviors, and coping strategies that can significantly interfere with daily functioning and relationship well-being.

The researchers also stress that more longitudinal studies are needed to clarify cause-and-effect relationships. Nearly all of the studies included in the review were cross-sectional, making it impossible to determine whether factors such as low self-esteem or anxious attachment lead to problematic love or develop as a consequence of it.

Another limitation is the geographical concentration of existing research. Most studies were conducted in the United States, Spain, and Italy, meaning the findings may not fully apply to other cultures or to non-monogamous relationship structures, which remain largely underrepresented in the literature.

Despite these limitations, the review provides one of the most comprehensive analyses to date of unhealthy romantic attachment. The findings offer clinicians and researchers clearer distinctions between different forms of problematic love and highlight the need for interventions tailored to the specific psychological mechanisms underlying each pattern.

Article prepared by Victoria Caldwell.