go ape over (someone or something)
1. slang To become wildly or uncontrollably angry about someone or something. My parents went totally ape over the news that I'd wrecked the car! Now, don't go ape over it, but I've decided to move to Canada.
2. slang To become extremely excited or enthusiastic about someone or something. I've never understood that pop star's popularity, but kids just go ape over her.