Welcome to the site, you have definitely come to the right place for insight on any thoughts you may have related to your loved ones gambling.
I commend your position on your CG’s gambling and your strength in your position and the realization you cannot control or fix your CG’s problems. I myself still struggle with this regularly. You have made all healthy decisions for the two of you. You have remembered that you are the most important person in your own life and that you must take care of yourself before you take care of anyone else. That is the absolute most important realization you could have come to.
kudos to you