Try this quote with her.
*** w87 9/15 pp. 11-12 pars. 7-9 Breathing This World’s “Air” Is Death-Dealing! ***
7 Christians too were under the “authority,” or control, of this polluted “air” before they learned the truth of God’s Word and began to conform to his righteous standards. “Yes, among them [worldly people] we all at one time conducted ourselves in harmony with the desires of our flesh, doing the things willed by the flesh and the thoughts, and we were naturally children of wrath even as the rest.” But upon becoming Christians, we stopped breathing in the death-dealing “air” of this world. We ‘put away the old personality which conformed to our former course of conduct and put on the new personality which was created according to God’s will in true righteousness and loyalty.’—Ephesians 2:3; 4:22-24.
8 The danger now is that after escaping from this world’s polluted atmosphere we may be enticed to go back into it. Here we are, deep into “the time of the end” and on the very threshold of the new world. (Daniel 12:4) Surely, we do not want to lose out because of falling into the same traps as did the Israelites. After they had been miraculously delivered from Egypt and had arrived at the border of the Promised Land, thousands “were laid low in the wilderness.” Why? Because some became idolaters, others committed fornication, and still others put Jehovah to the test by their murmuring and complaining. Paul makes a powerful point in saying: “Now these things went on befalling them as examples, and they were written for a warning to us upon whom the ends of the systems of things have arrived.”—1 Corinthians 10:1-11.
9 Regarding his disciples, Jesus prayed: “They are no part of the world, just as I am no part of the world. I request you, not to take them out of the world, but to watch over them because of the wicked one.” (John 17:14, 15) Jehovah will safeguard us, but he does not place “a hedge” around us, nor does he miraculously shield us from this world’s “air.” (Job 1:9, 10) So our challenge is to be in Satan’s world, yet being no part of it, to be surrounded by its contaminated “air,” yet not breathing it in. When we read secular publications, watch television, or go to places of entertainment, we are likely to be exposed to the world’s “air.” While some contact with worldly people is unavoidable—at work, at school, and otherwise—we must be vigilant so as to keep from being sucked back into the death-dealing atmosphere of this world.—1 Corinthians 15:33, 34.