I feel kind of weird after getting over him...?

I had a year long crush on this guy on my bus. He was my best friend and hilarious :) and I was glad we got to be friends. Then in April, he hooked up with this sl-tty wh0re. I really hated her for a while! Then, the summer vacation came and I didn't have to see him everyday and I was busy. So I got over him. I saw him as my awesome best friend again and saw his girlfriend as just a person again. But now, I feel weird, sort of empty. Like you've just woken up from a nightmare that seemed to last forever. You're glad it's over, but you're not used to the quiet, calm, silence. Well, best I could think of (: anyway, am I weird for feeling like this?