Relationship between Nadie and Ellis?

Media and people say the show is yuri, but, I'm not really sure if it is actually yuri. I have heard that Ellis loved Nadie, and I was hoping for at least Ellis to give Nadie a surprise french kiss or something XD But really, do you think Ellis loves Nadie as a lover or a sister? I mean sure it has been hinted that Ellis thought Nadie as a lover, because of her subtle jealousy and her "Don't we look like we're married?" in episode 19 or something, but then, those subtle hints just, ya know, disappeared. Or something. What do you all think?

Great, the flying monkeys came and stole my signature. Damn them.