So, in regards to the the genderbent Alice, I think that she became a he when the villainous became reincarnated. Because of this the world made Alice into Aleph. It was never originally BL
All she has to do is agree to meet him and act surprised when they meet. That is it. This way it would make it look like she had no idea who he was. It doesn't matter if it is a lie since she is already lying to him already nd at least this lie is only once instead of over and over and over