“…There is suggestive evidence that relationship satisfaction does fluctuate, at least across short timescales. Diary studies reveal that satisfaction and commitment fluctuate in response to time-varying stress (Neff & Karney, 2009), sexual satisfaction (Birnbaum et al, 2006;Zhao et al, 2022), and financial strain (Gajos et al, 2022), with individuals who report lower levels of attachment security and trust (Campbell et al, 2005(Campbell et al, , 2010Campbell & Marshall, 2011;Cooper et al, 2018) and higher levels of stress (Zhao et al, 2022) showing greater volatility in their daily and weekly satisfaction ratings. Further, larger fluctuations in satisfaction and commitment have been related to depression (Whitton & Whisman, 2010) and relationship dissolution in dating couples (Arriaga, 2001), over and above initial levels and slopes.…”