This is my personal opinion, but I'm not really a fan of the Extreme Home Makeover reboot, and I think replacing Ty Pennington with Jesse Tyler Ferguson was a mistake. Don't get me wrong, I have nothing against Jesse, but given that Jesse is an actor and I know him from Modern Family, when I see him hosting a reality show, I simply don't see Jesse Tyler Ferguson, I see his most popular character, Mitchell Pritchett instead, and for some reason, it makes me uncomfortable. With Ty Pennington, I never felt anything awkward watching him at work because Ty wasn't an actor like Jesse is, so when I see Ty, I actually see him instead of a fictional character like I do with Jesse.
Then add to that a sense of being "critic proof". You have to shut out the most vitriolic comments from your critics, because people can say truly nasty things behind the anonymity of a screen, but it's easy to slip from there into denying and deflecting all criticism. Then your decision to disregard criticism is easy to justify, because you have all these legions of fans praising you. You must be doing something right, right?
So you're awash in a level of attention you've probably never had before, you're craving more of it, which starts turning people from people into... well, merely fans, potential fans, and folks who don't like you, and you're incentivized to move as many people from that middle category into the other two (even negative attention is attention!). That's already changing your dynamic with the people around you. Add on that shutting out your critics and embedding yourself in an endless stream of praise making you feel smugly superior to a lot of other people, another change in how you relate to everyone else. Maybe you also become obsessed with comparing yourself to other famous folks, another way in which the way you relate to others can warp! You start to see yourself as powerful and talented, and it becomes easier to justify exploiting people around you. After all, they're inferior to you! They should be thankful you let them have the opportunity to work for/with you at all! Maybe on top of all of this, your life circumstances are changing, because, say, this has all made you wealthier, so even there the way you relate to other people is undergoing a massive change.
All of these rapid changes, all of this new self-perceptions, all of these new ways of relating to people around you, it's going to change how you behave.

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