Sometimes we lead with our ego and jump to conclusions. Pause and think from the other person's perspective first before reacting. Are they stressed? Are they afraid? Where is their opinion coming from?
At the end of the day, you want to help your buyers find a home and you want your sellers to help them sell their home. Keep the ultimate goal in mind when you're working with your clients and also when you're working with the opposite agent. They also want the transaction to succeed.
It's rare for a transaction to go through without some kind of hiccup, whether it's big or small. It takes a lot of self-awareness and introspection to step outside of your own feelings and react objectively.
Your client relies on you to represent them and their interests in your conversations with other agents. Somethings things get lost in translation but they can also get lost in emotion, if you aren't taking constant inventory of the situation. Take a moment and evaluate before reacting.