Love isn't a choice though. Nurturing is a choice.
Love is a feeling. It comes in many forms, some of which are romantic, some parental, some sisterly/brotherly, some friendly. Infatuation isn't love, it can be the initiator of what might become love, but love itself is a deeper emotion than such and is tied to the personalities and connection involved.
How you express this love is partially a choice, and in part instinct/how you have been raised to show care. If you show love in a toxic fashion, continuing to do so is a choice even if it is what you have been taught because refusing to seek help and relearn is a choice.
So essentially, what you do to a partner, friend or family member and how you behave in loving relationships is a choice. Cheating is definitely a choice. Choosing to pursue a romantic or sexual connection with someone you fall for when you are in a monogamous relationship with someone else is a choice, even if actually falling for that person wasn't a choice.
But love itself is not a choice.