10 signs you're stuck in a boring relationship

Falling out of romantic love: A phenomenological study of the meaning of love in marriage (2016): https://lib.dr.iastate.edu/cgi/viewcontent.cgi?article=7728&context=etd
Semiotic silence: Its use as a conflict management strategy in intimate relationships (2007): https://www.researchgate.net/publication/257198759_Semiotic_silence_in_intimate_relationships_Much_silence_makes_a_powerful_noise_-_African_Proverb