Heather Morris doesn't appreciate some online hate geared towards her former Glee co-star Mark Salling. The 33-year-old actress spoke out on Twitter on Thursday night after her other co-star, Kevin McHale, retweeted a post about the show's 2010 episode, "A Very Glee Christmas." The original tweet noted that the episode came out 10 years ago, and featured images from the episode, including a group shot which covered Salling's face with a vomit emoji. McHale didn't comment on the emoji, but retweeted the post, writing, "This album goes hard tho." Morris replied to the retweet, writing, "...