Choose the correct preposition.

I'm jealous ... my best friend.

My friend and I have been best friends since primary school. The problem is she is Ms. Perfect. She's popular ... all our classmates and teachers. She's a straight A student and good ... sports. Her parents are very proud ... her and she is very close ... her mum. Everyone is fond ... her. The whole situation is driving me crazy.
HELP!
Ms. Grin, 15, Brighton, UK