It could be either, though, Julie, he may well become more interested but I'm just pointing out all possible interpretations.
I would write them all down so you can see how they develop and then you will get some either of whether you have prophetic dreams or not (not all people do).
Jo.
PS: I looked on your thread and can I just say, you can't know what your XH is thinking and it is your assumption that he wants the house to fall apart because you are in a negative frame of mind and thinking the worst. The truth is, your XH is in WAS mode so the only person he thinks of atm is HIMSELF, and that's why he's vague. He may snap out of it when he snaps out of WAS mode.