I can understand why H may not get over it, even if the possibility of him (assuming not title strip) or his children being needed in case W and his family all died at once is very unlikely in today's age. Depending on how the whole spare aspect was treated, it could be something he feels needs to be discussed for future spares.
Like it we've all heard stories where parents loved their children eternally equally, but outwardly showed one more affection/importance, etc that the other feels that they were pushed aside. Now add that to historic institutions like Monarchy.
Does not mean outside of the worst possible scenarios him seemingly to try and change things is the least constructive way is good.