That's cool! I'll definitely play yours then because I'm just a huge sucker for bad endings :P anything tagged with lots of bad endings always goes straight onto my "I need to play this" list, haha.
Mine will eventually have the option to choose whether you play a male or female character and also which gender you want Kuro to be so you can have GxB, BxG, GxG and BxB; but it's probably only ever going to have that one romance in it because it just wouldn't really fit the plot if there were a range of romance options unfortunately.
I probably should've made the game with gender options from the beginning but I'm an idiot and have ended up going about it in an awkward way xD The plan was to finish the entire game as female heroine x male Kuro before working on the alternative gender options; but maybe that's not fair and I should finish each route for all the gender options before moving onto the next one! It'll end up being very expensive to try and get original art for all the characters though T_T haha.
In one route that's not in the demo yet, there is a different romance option besides Kuro, but it's not a "true" romance option, if that makes any sense!
Totally agree about bad endings being fun to write... Sometimes I even get fed up writing bits in between bad endings just because I can't wait to do the next bad ending xD