He may have forgotten he even said that to you. He may call you tomorrow and pretend all is well, even knowing he said that. Our kids say things off the cuff like that and have no idea how painful their words are to us. It means nothing to them. I am truly so sorry, I've felt that pain.
My own husband once told a life changing thing when I was freaking out and so upset, "He's either gonna make it or he's not, and there's nothing you can do about it." He's right, that one statement freed me forever.
My difficult child came back to me. I had a restraining order against him and didn't set eyes on him for 2 years. He got it together because I didn't help him in any way. He had no one to blame. He fixed it. He thanks me even for doing that. I know your hurt, wishing you peace tonight.