Tea Time with Tomato could it be unethical up to now somebody who is in a relationship that is monogamous?

Tea Time with Tomato could it be unethical up to now somebody who is in a relationship that is monogamous? Relationship advice column when it comes to one and also the numerous. Could it be ethical for the person that is polyamorous pursue or date somebody who is in a monogamous relationship (hitched or elsewhere) […]