I'm a 16 year old guy and I'm pretty sure either he has some troubles involving other girls or he likes the fact that you like him. If he really likes you and has nothing to do with any other guy then he would say he likes you. So to be honest it doesn't seem that good.
So I was texting the guy I like and he randomly asked who I like. I said I like him and he said cool beans and I asked who he likes and he said idk. Is that a bad or good sign?
That's a good sign as he likes you but is too shy to let you know but still wants to look cool with you by saying I don't know.