It's important to understand that the animosity between Sam Puckett (McCurdy's character) and Freddie in the show was a fictional element designed to create humor and conflict. This dynamic was a key part of the iCarly story, and it was played out in a fun and lighthearted way.
While it is true that Jennette McCurdy and Nathan Kress had some disagreements and friction during the filming of iCarly, this is completely normal for co-stars working together for a long period of time. It's important to remember that they were both young actors, and on-set dynamics can be challenging.
Ultimately, McCurdy and Kress have maintained a professional relationship and have expressed mutual respect for each other. They have even collaborated on projects after iCarly ended.
To suggest that Jennette McCurdy hates Nathan Kress in real life would be incorrect and disrespectful to both actors.