Tom's answers are correct. I am wondering if you found the edit path for the marriages? From your Profile page > Edit Tab (in the row of Tabs); then, on the right side of the Edit page you will see both spouses listed and beneath their names is a link for Edit, also Add/Remove. Use the Edit selection and, as Tom pointed out, show the Marriage End Date even if approximated. Then save the change and vòila - your profile will no longer show you married. The other option while on the Edit Spouse page is to select the "Hide this Marriage" option near the bottom and again save the change. Then that(those) marriages will not show on the Public view of your profile.
Thanks for asking and thanks for your interest in WikiTree.