Do you know if there are any novels where the male and female protagonists are cold to each other and have a relatively equal relationship?

Yes, I recommend "I Didn't Think So, It Was Evenly Matched", a modern romance novel about urban life. The male and female protagonists both displayed a strong indifference and an evenly matched attitude in front of each other. Their love was also a game. If you like this type of novel, you might as well give it a try. I hope you like this fairy's recommendation. Muah ~😗