Actually, there's an advantage to marrying lady Gray, and you should do all of her tasks, and then before asking to marry her, do the accusation mission. When you get to the end, marry her. Why? By doing her tasks, you can get the Thunder's Helmet Trophy, a Silver Key, and access to a Silver Key chest. By doing the accusation mission, you get access to the basement of the Gray House, where there's a Will Master's Elixer, and by marrying Lady Grey, you get access to a Demon Door with Ronark the Axe in it. Also, by running her out of town or marrying her, you get access to the Gray Mansion with a Silver Key, and a Silver Key chest in it with an awesome Katana in it.
And Skare, you can bang her. It can't be done often, but sometimes she's in her room, in which case you can give her gifts, talk to her, and use expressions until she's "ready"
Wanna listen to me rant about stuff? I started a blog!
https://theloonybinblog.wordpress.com/