Love — is it really your choice?

We used to think that love is something special, peculiar only to people, but scientists explain love because of chemical processes in the body. In animals during the mating period produced the same hormones as that of people in love. Now, think — do you love because you want to love, or because nature intended it? If the hormones of love stop being produced by the body, does that mean you won't be able to love?