They were close as kids. I have zero knowledge if that’s true now. I would like to think it but I don’t have absolute fact it is though. None of us do. People can (and sadly do) grow apart for a variety of reasons. Again we know what they show us. That goes for all of them.
I'm reminded by this of a certain statement that Andrew gave to Robert Hardman in the book "Our Queen". He stated that family events like the Easter service were times that they could interact with other members of the family where their ordinary days didn't allow them that pleasure.
We know William and Kate and family have recently been snapped with the Tindalls at the horse trials but Harry didn't. Perhaps Harry and William have had close enough contact with each other privately that it was a chance for Harry to catch up with his other cousins and relatives. Perhaps he didn't *need* to interact with William much like if I was at a family reunion, I wouldn't spend the majority of the time talking and interacting with my husband but rather those I've not seen in long while. The House of Windsor and the "Firm", although a team effort, rarely work together and don't have the opportunity to just "pop in" for tea and a chat.
For the longest time its been WilliamandHarry as two peas in a pod. Diana's boys. They ventured into establishing their own Foundation. Each man had his own private life and occupation away from royal duties. William marries and starts a family. How many times have we remarked on Harry being the "third wheel"? Quite a few. Then comes the biggie. William and Kate step up to being full time working royals for the "Firm" and Harry marries and he and his wife jump into the full time working royal game. It was never going to be WilliamandKateandHarryandMeghan (or the fab four) as it would be detrimental to the "Firm" as in "too many cooks spoil the broth" kind of thing.
They branch out and forge their own paths and areas of interest. William and Kate as a future King and Queen of the UK and Harry and Meghan are going to direct their focus on the Commonwealth. They've all become full fledged individuals that work for the monarchy.
Perhaps there are ideas floating around within the different offices on Africa, global projects and more individualization between the Cambridges and the Sussexes. I've always said that as the monarchy heads into a new reign, the trend of taking their projects globally will be the way to go. In our global society today, its next to impossible to actually "exile" someone to the far corners of the Earth where they'll be out of the limelight.
Perhaps it is all part of a plan for the soft transition between monarchs that is happening right now. Hardman stated in his Fail article that its prudent to move the Sussex office to BP now rather than wait until the next reign for financial reasons. Once Charles is King, Harry and Meghan's work for the monarchy will be under the auspices of the King rather than under The Prince of Wales. Its preparing for the inevitable.
I don't believe for a minute that there's a "feud" going on between *any* members of the British royal family. They're not always going to agree with things or see eye to eye on how things should be but that is all part and parcel of being adults in an adult world working at the same corporation and being a part of a team rather than just "employees", they're encouraged to have their own thoughts and opinions and ideas on how to do things. Some will float and some will sink like a lead balloon. The main thing though that is forgotten in reporting and is the ability to differentiate between a working relationship within the "Firm" and the separate private interactions between family. That line gets totally blurred way too often IMO.
Easter service was a family time to be together. Neither William or Harry have ever "played to the press" or used family occasions for a wee bit of PR or oneupmanship or ego stroking. Its my belief that they prefer to just forget that any member of the press or public are there and enjoy each other as any normal family would.