You're not going to like my reply. I was 18 and finished with him at 24.
I thought I knew it all. I thought going shopping was so grown up. I use to compare shopping receipts with the women I worked with (supermarket). We'd see who could get the most for less. These were much older women with families.
I loved going home to my own place, staying out late, doing what I wanted.
He turned out to be an abusive arsehole. Thankfully I seen the light.
I know my parents weren't happy, but they never said anything, turned out years later they sought advice from family members who advised them to let me learn the hard way and it would only push me more to him, but..... I really wish they had sat me down and explained that they weren't happy, I probably would have ignored it but we'll never know, in my more mature years I like to think I would have listened and took things slowly.
We even got as far as wedding venues...
Maybe arrange a lunch date each week with your dd. She's feeling the freedom, she's enjoying the freedom, she won't come to you as she has just left your home, to her you are still her mother and the one who instilled the rules. You WILL have a great relationship but for now she's experiencing freedom and her first relationship. It's up to you if you feel you want to say something or express your feelings.
I've made my older teens bedrooms like little apartments, as I never want them to leave 😂 no seriously my boys never want to leave but the girls are planning their escape, I think girls usually want to move at an earlier age. Maybe living with his relatives won't be as good as they imagined, always remind her she has a bed in your home.