So i confessed my feelings................damn?

Well, last week I told my friend I liked her. We mutually agreed that dating wasn't for us and to still be friends. However, there's this awkwardness around us, and now its like I don't exist to her. Is she avoiding me, and why? Also, what can I do, I still want to be her friend, even though it might not be possible for us to be as close as we were before. Well, I do say hi to her and she says hi back. But at school, my friends and I usually hang out in a specific office, and when she stopped there, she would usually pester me in a playful manner, or invite me to go get food with her or something. Anyway, she did try to invite me for food yesterday, i declined. I dunno, it might just be me, but it seems like she's not making much of an effort, and today it was like i wasn't there. She's REALLY POPULAR. She's got a ton of male friends who are well better looking than I am and stuff. She even told me she didn't think we were compatible, so I'm okay with being just friends, if she wants