Title and Tag displaying twice on search engines

My website is http://www.rezolue.com and I am currently using the theme Adelle by BlueChic. The title of my blog is “Rezolue” and the tag is “passively aggressive”. I am having an issue with the title and blog..
When I search my blog, the title and tag will show up twice like this:
Rezolue | passively aggressiveRezolue | passively aggressive
Too Faced Coco Glow Duo | RezolueRezolue
Sephora 2012 Black Friday Haul | RezolueRezolue

This only happened after I installed SEO Yoast, and the issue goes away once I disable it.

I did this:
– Deleted title template
– Checked/Unchecked Force Rewrite option
– Used “<title><?php wp_title(”); ?></title>” in my header.php
– Looked for “add_filter(‘wp_title’, ‘some_function_name’ );” in my functions.php (my theme does not have this code)

Instead it did this: Nothing changed- still having the same issue.

Please help!

http://wordpress.org/extend/plugins/wordpress-seo/