I don’t disagree with you, Triple H treated a lot of people like crap when he was just “talent” and I think that reputation and some of the damaged relationships resulting from it, probably come back to bite him on a fairly regular basis.
Having said that, I have seen both him and CM Punk mention several times over the last year or so how they have been able to basically start fresh in their relationship. And those two had a terrible relationship. They both openly admit they did not like each other at all. Punk has talked about how the first conversation he had with Triple H before he came back, Triple H basically said to him that he was not the same person he was 10 years ago, and he assumed the same of Punk.
They started over, and by all accounts the relationship is quite good now. I have no doubt that The Rock isn’t really interested in mending fences with Paul Levesque for two reasons, firstly he probably holds a grudge and secondly, he doesn’t have to mend fences because he has so much power now. I’m sure he enjoys sticking it to Triple H.