IF this is the reason (how do we know??) he clearly made the right decision.
Any one saying ‘why there’ don’t know how women work. I’m 85% sure it went down like this: Buddy hit his threshold on their trip and decided in his head it’s over when they get back. Real people can’t be fake, so he was probably being different, being short. Women micromanage so she gon needle you to death. He was probably trying to keep it cute buying his time but she was on his head ‘what’s wrong. Why are you so short, why, why, why, etc.
He had enough and told her