Explain 歌词

I can't explain Everyone keeps saying Same thing You must be sad I guess I'll tell you It's not the same thing It took a while but I'm doing ok We played a long time We got along fine And just like you I can't believe it's through Believe it Me and you I'm on my own now I play alone now I'd like to say that I'm kind of scared What if I lose it I've been known to panic I make myself sick 'cause I've got bad nerves I've got bad nerves Oh my nerves