By Katie Wilson Charlotte Crosby has hit back at her former Geordie Shore co-stars after they were caught gossiping on camera behind her back. The 33-year-old quit the MTV show last summer after 12 years and later unfollowed castmate Marnie Simpson, prompting rumours of a feud. And although she revealed she won’t watch the latest episode of the new series, which started this week, Charlotte took to Instagram to thank fans for their support. In a lengthy statement, she wrote: “Hi everyone. I just wanted to pop on to say thanks so much for all the lovely messages I’ve received over the last 24 h…