I read the article and for once this doesn’t seem connected to a new clapback by Harry. Although the headline makes it seem that way, the substance is more about Harry being angry about the original Hello deal, and supposition that this is the cause of the rift that means the cousins aren’t close now. So I think the response from Harry is probably the one we heard via sources the other day - that he’s blaming meanie William for blocking his invite, rather than his own behaviour being the cause.
however reading the article, this paragraph stuck out to me:
“Harry loudly complained later that the first he knew of the debacle was when a copy of Hello! was delivered a few days later to Highgrove, his father's country home, and he saw it on the breakfast table.
Furiously, he tried to call Peter to have it out with him but his phone went straight to voicemail, he later said, as Peter had 'buggered off on honeymoon'. “
Assuming this is true - and if so I think it was absolutely crass and very poor form of Peter to arrange a magazine deal without informing the family in advance - it’s another good example of how selfish he is, that he tried to call Peter and have it out with him immediately, potentially causing a huge row or upset in the middle of his honeymoon. Most decent people - however upset - would wait and address the matter once the person was back from their honeymoon. But for Harry it’s all about his feelings and nothing else matters.