Are these situations legal or illegal in the workplace?

An employer learns that one of his employees is in a same-sex relationship. This makes the employer uncomfortable, resulting in the employee being terminated. Are the following situations legal or illegal in the workplace?

An employee is terminated from her job without reason. Her performance over the past two years has been above average.

A 43 year old employee is terminated from his job and replaced by a younger (38 year old) worker who receives a lower wage. Prior to being let go, the older employee’s performance was satisfactory.