Many relationship difficulties arise because people have different communication needs. Women typically need to talk more, men to think more.  Some people need to talk to feel "connected" to their partner, others find talking irritating or stressful, especially if arguments are common. The consequence of these variations is that someone usually feels hurt.  Unless that hurt is resolved, communication can become negative and attacking, sarcastic or barbed.

Become aware of communication patterns

Become aware of how each of you in the relationship communicates and why, and learn how to safely disclose even old hurts to your partner.