Surprised but not. It's only 33% favorable right now after all. If I had to cater to some rich privileged person from a country that destroyed my home, I'd feel the same. Honestly, the more I think about it the more I like that he's so angry at her. She's like an outlet for him to lay out his grief. And penelope isn't mother Theresa either. In a game of survival where all he knows about his new master is "whimsical and rich but looked down on," it makes sense. Does he still feel that way over time though? That's a different matter!
Everyone's saying he's dead but he's NOT dead after the last fight his body was not found but after three years or so the FL found out he was protecting her from a distance even though he lost most of his memories but still felt attachment to her with love and hate both involved. They kinda resolve their conflicts and he leaves for the north eastern side away from the FL (this is part of the side story).
2. He doesn't not care about the original at all he was hypnotised and controlled by her and also eclise had developed a yandere mindset where he wanted to isolate the MC so she just relied on him so he was even easier to control and manipulate by the og fl
Spoiler
The first time we get to see eclipse thoughts in the novel
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It really broke my heart how the first thoughts we read about eclise is that is he's calling Penelope a stupid bitch who he'll only need to put a good act of being an obedient dog and then fool her. I was shooketh to the core. I DID NOT EXPECT THIS I mean yeah I did know he was gonna betray her and bring her the "real" FL but that was under the guise of hypnotism because till now he was shown as such a cutie and doggie like character and his interactions with Fl seem very cute and genuine (not more than the crown prince that guy's on an another level) but boy o boy. And mind you we get to see his thoughts pretty late like when we saw his real thoughts the favourability of eclise was in the 90s and chapter was in the 150s I guess so till now he was acting and he fooled everyone.