It hurts knowing you're smiling with her 

It hurts knowing you are looking at her the way you used to look at me

It hurts knowing you're texting her the way you used to text me 

It hurts knowing that you are kissing her 

It hurts me more when you know that you had a chance with me 

It hurts knowing you acted stupidly even with all my hints 

It hurts knowing that you are possibly telling her good morning and goodnight all the time 

It hurts knowing that I could have been yours 

It hurts knowing that you don't notice me 

It hurts me knowing that other girls did you dirty but I was there for you 

And...

It hurts when you don't even say hi at school knowing that we text each other 

It... just... hurts