I am now single and have been single since Feb. 2016. How do I get rid of my ex's personal information that appears?

If you didn’t divorce or separate during the tax year, be sure to answer NO to the question “Did you separate/divorce from your spouse/partner in 2017?”. TurboTax will then omit questions about your spouse from your return. https://turbotax.community.intuit.ca/replies/3425400