My lack of time and modding ability is, mostly. I can certainly try, though.
The changes I had in mind (and should I post this in a separate thread?) were to change it so that when starting a conversation with a lady and it checks for gender (assuming conversation works this way), rather than removing all options, it checks for a randomly generated variable for each lady to determine if they are interested in such relations (And the same with male player characters talking to lords), and then offers a conversation tree similar to that of a normal courtship, with some obvious dialogue changes and perhaps a difficulty increase compared to the difficulty of a heteronormative relationship (such as, for a male player character seeking to romance a male lord, requiring a higher level of trust than a female player character would require for the same thing).
I have no clue how to work on conversation trees, though, or how to turn it in to a mod.