What was I thinking

I don't like thinking about what we used to have
Or the way we used to be
Cause the good times never lasted long
There were times when I had no idea who you were

So I said to you that I can't do this anymore
You gave me the guilt trip
Saying that I never cared about you
But we both know that's not true

Because if I didnt care I wouldn't have kept going back
I wouldn't have stayed with you when you stood me up
I stayed by your side when you wanted space
When I saw you flirt with other girls

Maybe it wasnt me caring..
Maybe it was just my stupidity
But i've woken up, I may be a mess after it all
But I know it wont last, You aren't worth it.