Complex sentence: Some limerent-limerent relationships evolve into affectional bondings over time as limerence declines and such couples are described by Tennov as "old marrieds" whose interactions are typically both stable and mutually gratifying.
Split into simpler sentences: Some limerent-limerent relationships evolve into affectional bondings over time as limerence declines. Tennov describes such couples as "old marrieds" whose interactions are typically both stable and mutually gratifying.