Some good reverse harems:
Akatsuki no Yona (One of my favourite anime), Ouran High School Host Club, Uta no Prince Sama (It get's progressively duller with every new season though).
The CPR did nothing to actually help him stay alive. His chakra system was what was ripped apart and keeping his 'heart beating' did nothing to fix that. She also stops part way when everyone starts talking in front of her. Spends like a chapter or two just staring up at everyone, not doing anything to keep Naruto alive.
It's only the Kyuubi being shoved back in him and the Sage's plot healing that kept Naruto alive.