Complex sentence: Both Yukari and Tomo have similar obnoxious personalities: braggart, jealous, delusional, lazy, selfish... but rather than being hateful, they are amusing and likeable-you can see why their friends like them, even as they are annoyed by them.
Split into simpler sentences: Both Yukari and Tomo have similar obnoxious personalities: they are both boastful, jealous, delusional, lazy, and selfish. Rather than being hateful, though, they are amusing and likeable-one can see why their friends like them, even as they are annoyed by them.