Undeniable love

how does one chemical reaction, cause such a tidle wave of emotions?
how does the though of you leaving cause an ache in my stomach, and tightening in my chest?
how does my love for you consume the best within me?
how does your smile, and light in your eyes, change me?
your presence always causes my heartbeat to become irregular and figurative butterflies to form within my stomach.
theres something about you, that i genuinely adore. 
i try to deny it, but my love for you is truly undeniable. 
and because of you, because of my inevitable love for you, i am no longer myself.