He'd married you for funding and status, access to more cash and having some kind of fame were a well beloved benefit set to him, though getting them by marrying you had been a small downside.
So when five years later you began working on the paper work for a divorce and he found them, he was pissed off. He had what he wanted and he wasn't about to let you take that away from him for the reasoning of him being "distant and cold". Hell, if he had to chain you to the basement floor he would, but he wasn't letting you leave this marriage.
He laid the crisp papers out on the cool marble counters in front of you and spoke firmly: "Divorce? Really? If you're so attention needy then get a dog or a cat for company. But we aren't getting a divorce and that's final."