I don’t think anyone here is saying they like this relationship, but that is not the issue. It’s her relationship and I think we need to give the benefit of the doubt to the daughter you raised to make sound relationship decisions for herself. I also would not use the “well I pay for your college so you have to do what I say” argument as that will only make her resent you and push her away. She isn’t 12 years old anymore, treat her with respect and love, she is an adult and part of growing up is being in “bad” relationships and learning from them no matter how difficult it may be for you. I like the saying “this too shall pass”.