Slytherpuff Friendship

I see that many people post about friendship between Hufflepuff and Slytherin. Here I want to share my experience because I'm a Hufflepuff and my friend Lady Slytherin is, obviously a Slytherin.

Hufflepuff gets this reputation of being kind and loyal, even adorable. Slytherin, on the other hand, has the stereotype of being ambitious and evil. However, Lady Slytherin and I don't fit that stereotype. She's a sweet yet sarcastic Slytherin while I'm a troubled yet hilarious Hufflepuff. We also have different MBTI; she's INTJ, I'm ISFP.

Our friendship consists of:

1. Hufflepuff shares weird thing that she finds on the internet
2. Slytherin has various reaction to that weird thing: "hahaha", "what the hell", "aaaarrrghh", etc
3. oh wait, Slytherin also shares weird thing
4. we both can relate to Sirius Black's scene, "I did my waiting" because that would be our reaction when we finally become doctor
5. we have only one mutual fandom: Harry Potter
6. we respect each other's fandom but constantly compare them: she likes Tolkien's works, while I like A Song of Ice and Fire by George. R. R. Martin (Hufflepuff isn't always about cute story, you know)
7. Hufflepuff is that emo kid who still plays songs by My Chemical Romance
8. Slytherin is not really into bandom
9. our conversation starts with normal everyday thing but ends up with something absurd
10. usually I'm the one who makes the convo absurd
11. Hufflepuff relationship advice consists of: fiction book and some weird things from the internet (if you don't get it, it's all right)
12. Slytherin is more mature when it comes to relationship advice: give and take should be balanced, you should love yourself first, etc
13. still, we both don't really have good luck in relationship (being single for too long time and spending too much time with fictional characters, duh)
14. but if someday Lady Slytherin finds someone, I'm ready to ship them, they would be my OTP
15. and if someday I find someone, she would be surprised first because I'm not always that interested in relationship, not even fictional relationship
16. anyway, we love bookstore; we can just go to the bookstore trying the quill (kidding) or pen then feel happy 
17. or just look at the book covers and make joke about them
18. or give each other book recommendation
19. or give each other encouragement to buy book like, "Buy this Game of Thrones novel! You want it, right?" 

The list can be longer but I think that's enough for now. Do you have any experience with inter-house relationship?