Oh Boy! I remember those kinds of promises. The begging me to give him another chance, how his life wasn't worth living if he didn't have me...quack, quack, quack.
I allowed myself to fall victim to those promises for YEARS. It broke me. I ignored my instincts, I wanted to believe him soooo badly. I think he wanted to believe himself when he said it, but he was never serious about finding ACTUAL recovery, so his sobriety never lasted. Each and every time he broke his promise, drank and lied about it... I got a little bit crazier.
You sound grounded. I am glad you are following through with plans to find another place to live. I think that is very, very smart. Just knowing what your options are and what steps you will need to take, should you decide to make that choice, will be a huge weight off your shoulders. It's the unknown that really twists us up...so one less unknown is huge!
You are doing great, your boundaries are in place and you are formulating a plan. Good stuff!