One of the parties becomes a little too aggressive by aiming hurtful communication at the other party?

It is important to address this behavior immediately and set boundaries. The other party should calmly communicate that the hurtful communication is not acceptable and express how it makes them feel. It may be helpful to suggest taking a break from the conversation to cool off and revisit it later when emotions have settled. If the aggressive behavior continues, it may be necessary to seek outside help or consider ending the interaction altogether. It is important to prioritize emotional safety and well-being in any relationship.