5. If he is older than her, she speaks too politely
“Even though we are dating, she is too polite when she speaks to me. I feel like I am her guest.” Many men in societies with strict social structures have this complaint. If her boyfriend is older than her, it will naturally be difficult for her to break down that structure and start talking to him like an equal. On the other hand, it would be unnatural for her to keep using polite language for too long. She could try to use overtly “casual” phrases in a joking way to get herself used to the idea of speaking casually with him.