I am now your girlfriend.
Can we kiss? No.
Can we fuck? No.
Can I drink your saliva? Yes.
Naze no Kanojo X is the definition of abnormal relationship or rather a bizarre story of "how relationship can come in many forms". This anime was indeed disgusting however that critic mindset of mind had already vanished by the time I accepted the fact that it's not a big deal and I could learn a thing or two from this intriguing story. Which is of course exactly just like what I stated a few sentences above : "How relationship can come in many forms."
The entire anime is about an abnormal relationship between a boy and a girl as they spend their school days doing whatever abnormal things they always do. Other than that, there's nothing else which this anime offers.
This anime was great and I indeed enjoyed it but it probably would've been very much more enjoyable if there were some drama in it and/or perhaps a tragic backstory of why she ( the girlfriend ) became that way. Overall a 10/10. Very fun to watch. Recommended to all romancers.