I messed up

so I've never been in a relationship before. which is fine with me bc I'm questioning my sexuality but my one of my best friends asked me out and I said no. now he won't talk to me the way we used to and when I dyed my hair he said he hated it and I'm just worried we'll never be friends again. some days I'm super attracted to him but other days I just feel too awkward. I've been asked out twice in my life and both times I feel like I want to throw up. am I broken?