He remembered that Dean mother is 58 and is a widow. He had decided to change it so that Dean mom went from 58 to being 28. He had also decided to change Dean from being 5 to 2. He then saves. He had then heard a knock on the door and when he answers it. We see that it's Dean's mom and she is plain. Robin bring's Dean down and we see that Brad and Dean's mom have been talking and find that they like allot of the same stuff. Brad had asked her out.
We find that Brad and Dean's mom have been going out for a while and we hear Brad told Robin that tonight he was going to ask Dean's mom to marry him.