I absolutely agree with you and I think it's definitely intentional. I think he's meant to be deceiving which is why the character we play as even seems off-put by him. The fact that when you have the ability to choose one of them at the very end too it mentions that he might be too good to be true as well... Either way I am absolutely falling for Leander, I am willingly walking right into this possible trap. They all seem like they're supposed to be deeply flawed in some extreme aspect and I am like 99.9% sure that there's going to be some insane dark side to Leander.