I'm making a site for the Mrs's
I have used ArticlesAnywhere on other sites for directory purposes, but when copying to this site, it behaves quite strangely.
By using the following snippet, I would expect to get 2 columns of articles, but I get one long row instead
Articles Anywhere is outputting the html as you have told it to.
How those html elements are displayed and styled is completely down to css and your template. This is outside the control of Articles Anywhere.
For more info about how elements get their styling, you can use the Element Inspector of your browser.