We have adopted three foster children, and trust me abuse is a hard thing to get over. Our one son was tied to his bed with tape, and allowed one meal a day for five years. He is a sweet caring person, but he still feels paranoid of people out to get him if they do not do what he wants. It is a lifelong process, and sometimes you make the right decision, and sometimes you do not. Jesse in this instance did not.
I just have to say though that Sandra and Jesse should have become coparents to Louis. If they started the process to be parents together, than Louis deserves the both of them. Whether or not they work out, that child deserves a father, and Jesse has never shown anything but good towards his children.