Imbalance. ("My spouse talks too much!") OR ("I'm the only one sharing!")
Honesty. ("My spouse keeps their true feelings from me too often.")
Too Busy. ("Communicate...who has time to communicate?!")
Miscommunication. ("I need a Manslator/Womanslater!")
No Desire/ Avoidance. ("For us communication = arguing, so why try.").
Baggage. ("Our 'communication' always ends up being about old issues.")