More than three decades after they first starred together in Home Alone, Macaulay Culkin is opening up about the emotional bond he shared with Catherine O’Hara, and why her passing left him feeling like he “owed” her something more.The former child star, now 45, discussed O’Hara’s recent passing with Gentleman’s Journal. O’Hara died on January 30 at age 71 from a pulmonary embolism linked to an underlying illness.Culkin wished he had more time w…