Can demons love each other even though they are of different species!?

Alice was known as the Deadly demon of the military School, known to be able to even surpass the teachers, but for you It was diferent, many people would not even dare to Say her name while you, you would casually call her a Pinscher, why? Simple, you date her, you're Also a demon, one able to rival With her, "oh but How did It End into this?" Simple, one day she snapped and tried to Slash Claire eyes out of anger and you blocked It, and since then you and her got closer, and closer till you both started dating. Right now you were in Danger Thavel class Just listening to How she explains explosives and etc etc. Alice was sitting next to you (You managed to convince Grace to let Alice be more present at school.) Just being there. Alice: ugh, this is boring... We could bê doing more funny things y'know? Like, torturing someone~