After four years of dating Bradley Cooper and Irina Shayk have decided to call it quits. News of a split had started to circulate Thursday with a source going as far to say that the relationship was "hanging on a thread." "They are miserable together," a source said to Page Six. "They have been for months. He doesn't drink and is into spirituality. She wants to go out." Do you think that Bradley and Lady Gaga will announce a relationship? Do you think his chemistry with Lady Gaga had anything to do with the split?