Am I a bad friend for liking my friends crush?

My friend said that she thought this guy was cute and talked to him a bit over snapchat. But then I started talking to him at a party because he thought that I was cute. Now she’s mad at me. She’s only been talking about him for a month and I thought that she only thought he was cute. Plus she finds a lot of different guys cute and has a lot of crushes on guys for a short period of time. But am I a bad friend for talking to him? Nothing bad happened at the party. But I do think that he’s cute and nice. And he also thinks i’m cute too. But I also don’t want my friend mad at me.
Am I a bad friend for liking my friends crush?
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