I don't know why..!

Every time I see you,

I don't know why I am smiling ;

I don't know know why my heart beats fast;

I don't know why my mind stops thinking;

I don't know why I feel relieved;

I don't why I am happy;

I don't know why my eyes get bright;

I don't know why face gets glow;

but I know only one thing dear...i.e.,"I am in love with you my sweetheart"