I think they were all genuinely good friends and that they still are but it's probably very similar to when you leave school and you meet new people and drift apart.
I do believe that part of Harry's persona was to separate himself from his 1D days - this even started before the end of the band. 1D were given a lot of stick for being a boy band and weren't taken seriously by many in the industry. Harry's management worked hard to have him taken seriously and distance him from 1D.
They have been there for each other after 1D so I like to think they are still close - they all went to Louis when he performed on x factor after his mum passed. The other 3 seem publicly closer but
![Woman shrugging: light skin tone :woman_shrugging_tone1: 🤷🏻♀️](https://cdn.jsdelivr.net/gh/joypixels/emoji-assets@5.0/png/64/1f937-1f3fb-2640.png)
who know's about Harry. What we see/hear about is what they want us to see/hear.
I did read a quote from an interview that Liam gave where he said that he doesnt speaks to Harry as often as the others but when they do see each other it's just like old times. Celebrities are just like us - I know I'm shit at keeping in touch with people.
I really hope they do some sort of reunion at some point but I imagine they all feel like they have more to do to prove themselves as solo artists first.