Ryan Murphy has nothing but “love” and “support” for Ariana Grande after her sudden exit from “American Horror Story.” “I love Ariana Grande. We’re great friends. I had an idea and I came to her and she, very immediately, said, ‘I’m not sure because I think I’m going on tour,'” Murphy recalled to the Hollywood Reporter Friday of how he first approached the singer to join Season 13. “I don’t think the tour had been announced, and she had obviously just finished the ‘Wicked’ movie. So when it came time to do that episode, I called her up and she was like, ‘I don’t know how I’m going to juggle the tour with this.'” According to the…