I'm not sure if this is what is meant, but "a mess to be made" could refer to the mistakes the person has not made yet...and he obviously has made a mess of his days, and doesn't want to screw up her life like he's screwed up his. She leaves because he has trouble really connecting in the relationship when he's so afraid he'll hurt her (and thus in his dream, she's all alone with tears in her eyes), and she can't take it. So he helps her out the door, he knows he's not a good thing in her life, but when she gone he just thinks about her and wants her back. No one else really sees him as a screw-up like he sees himself, since he's doing fine financially. But he knows that his life is so much more than numbers on paper.
I'm not sure if this is what is meant, but "a mess to be made" could refer to the mistakes the person has not made yet...and he obviously has made a mess of his days, and doesn't want to screw up her life like he's screwed up his. She leaves because he has trouble really connecting in the relationship when he's so afraid he'll hurt her (and thus in his dream, she's all alone with tears in her eyes), and she can't take it. So he helps her out the door, he knows he's not a good thing in her life, but when she gone he just thinks about her and wants her back. No one else really sees him as a screw-up like he sees himself, since he's doing fine financially. But he knows that his life is so much more than numbers on paper.