Cox was spotted without her engagement ring while running errands in Los Angeles.
The two decided to go their separate ways after a 17-month engagement. A source revealed a few reasons why Cox and McDaid split, telling Page Six, "He’s actually the one who instigated the breakup. Johnny feels she’s a little too close for comfort with her male co-stars. He doesn’t like the fact that she’s close to them, that she stays in touch with them, [because] she has this past of falling in love with people she works with. He feels very uncomfortable.”
The source continued, "She has an aversion to [McDaid smoking cigarettes]. She feels like it’s a bad image, she doesn’t like the smell of it. They constantly fight about it. He started vaping, she doesn’t even want him vaping.”
The split was reportedly not amicable since the former couple “are not speaking terms.” The insider added, "He up and moved. She doesn’t know where he lives. It’s really bizarre how he’s handled things. He’s very cold, completely closed off from her.”