Another thing you need to pay attention to is that he may be a perfectionist (this seems to be a common problem for everyone who likes calligraphy, and he should strive for perfection when practicing calligraphy). Although he is tolerant of some things or people, he may not really approve of them, so if you love him, try to make yourself better.
Hehe, some personal opinions are not necessarily correct. I hope I can help you.