Unsung Zeros - Not What I Expected lyrics

i've got a vision in my head of how it should be and i wonder if that's how it will work out when i sit down will i be smiling a grin on my face or will i just want her to get out of my head and my mind that's how it goes sometimes i think it will be so right and then she shows and it's all wrong i feel her hand touch on my arm and my skin grows cold how can this be why's it so fake and why's it so false how should i tell her she should go cause it's all my fault i let my heart get ahead of my mind and everything else