I think it is wrong to get others involved. Even if they mean well, they usually create problems. However, it seems like you are happy with what your colleague had to say about your wife. Is it because you are hurt? I understand that need to talk bad about her if you are hurting, but from DB standpoint, it is not productive. You could call your wife and say you have been looking at rentals and then remind her the lease is up soon and everything has to be out. See what she says. You might be able to get a read on her plans that way.
There is always hope if I'm responsible for my own behavior.