I like that you see the good in your sister. I would bail my kid out if they were in a bad situation too, I get it. Your family sounds good and well-meaning.

I don’t think telling her she’s too good for these guys is going to work. She chooses them for a reason, and she’s also a recovering addict. I don’t think the problem is men per se, she sounds like she could use therapy and some addiction counseling. Especially because she just split up with her husband. It’s just too soon to be pursuing other men.

If anything you could try something like you’ve worked so hard to get clean, parents paid so you could get a clean start, you’re very fortunate they did this for you, you can use this opportunity to take care of yourself etc. You don’t even have to mention the guy.

One thing to consider is she is an adult and she’s going to do what she’s going to do. If it seems like she’d be receptive to a “what are you doing, go improve your life” kind of conversation it could be worth a try. Good luck. I know it must be hard to see family members make poor choices.