Arquette is a keen tweeter and he was overjoyed to learn Cox, who he split from in 2010, has joined the microblogging site.
He declared, "Oh my goodness - It's a miracle. Welcome to twitter Courteney! Don't let the haters discourage you. There's a lot of love 4u. Everyone please follow CourteneyCox."
Cox quickly began sending out updates on the site, writing, "Ok! Giving Twitter a go! Who's out there? WOW! this is fun, but i think my computer is starting to smoke... What am i doing, David?!?!"