His manipulation with words is intended to cause you doubt, question yourself and stop the push for him to move out because NOW he SAYS he’s GONNA look into rehab AGAIN.
You’ve already made up your mind that you will stick with him based on him using the words “I’m going to look into rehab again, because it effects my work as well as us”.
Actions are what matter and are what count, not words. Wait and see because more is going to be revealed.