Well, to be honest, Alonso has one of the biggest ego's in F1 !!
This was one of the problems during his time at McLaren, where he automatically expected that everybody would run around making sure that he would be well taken care of, at the expense of his team-mate. McLaren on the other hand, have been grooming Hamilton ever since his first race in karting, when he told Ron Dennis (boss of McLaren) that he was 'gonna drive for them, one day'. Dennis took this on board, and had been keeping a close eye on him ever since. So when the opportunity arose to give him a drive at his 'dream team', naturally he accepted !!
Alonso didn't like - or just didn't bother to try and understand - this Dennis-Hamilton relationship, hence the well-publicised reports of the 'dam ning' cellphone messages. This - as you can imagine - didn't go down too well with the team, and any respect they might have had for him him evaporated, and soon after it was reported that Alonso would be going to Ferrari the next season - HIS 'dream team', and why (imho) he 'engineered' the scandal in the first place !!
As for the Hamilton-Button relationship, sure there's a few 'niggles' between them, but that's ok. The same 'niggles' are prevalent in all teams, it helps to keep the drivers on their toes, and competitive. Both have demonstrated on numerous occasions that they are 'team players', giving the other driver the advantage, instead of keeping it for themselves. Unlike Alonso, who's frequent radio complaints about Massa being ahead of him, and demanding the team tell him to 'pull over' and let him pass, have been wearing very thin, and not just with me !!
Yes, he's a talented driver, 2 World Championships proves that. But he's arrogant also, too arrogant imho !!