I want you to know that your comment made me giggle, thank you! Also Spencer is considered a secret RO/partial RO because they will not always be available like the main six.
You will meet Spencer later in the game and can try romance even if not on the orphan background. However, what you decide to do in the will greatly shift things so anything is possible.
.... also I just realised that I forgot to mention that ROs can die in the game. I should probably make a post.
Thank you for your lovely comment and I'm glad you like the UI!