Tell him to do the website changes instead of you if it's very easy for him. Should he says no, there's your answer. If he says yes he'll do the changes, take

Tell him to do the website changes instead of you if it's very easy for him. Should he says no, there's your answer. If he says yes he'll do the changes, take a long trip for a month without any intervention from your part. Then count how many times he begs you to come back.