Well in that case you dodged a major bullet by her turning you down. You don’t **** where you eat. I’d delete her number, block it if you want to. If she’s on social media, leave her on there (don’t delete her). You want her to see you posting pics with other girls. Delete and block the number though. You don’t have to avoid her at work but if y’all cross paths and she tries to talk keep it short “sorry I gotta go, I’ll hit you up later” and never do.
Women are never going to learn that guys don’t want to be their friend because there’s enough stupid guys out there that think being friends is good. It’s not, it’s the perfect way to set yourself up to get used. You trust a used car salesman to give you a deal? No? Then don’t trust any women to be your friend.