Selling Sunset star Christine Quinn got real about her feud with Heather Rae Young, which began after she poked fun at her costar’s romance with Tarek El Moussa.“It’s really funny to see Heather’s relationship play out because her and her boyfriend have such an interesting dynamic,” Quinn, 31, told Page Six in an interview published on Thursday, July 30. “I call them ‘Speidi’ all the time because it’s like articles all the time about baking cookies, you know, watching movies.