“But is her primary relationship with her husband or her father.”
I think this is key. It’s usual for adult children to eventually form closer relationships with people other than their parents -in some cases that doesn’t happen.
Some posters are taking a polarised response almost implying the only two categories are incest or a healthy relationship. Maybe there’s a whole sliding scale in-between? There are all sorts of possibilities including enmeshment, codependency etc.
You were uncomfortable with where your partner and daughter’s relationship was on that scale and it was not right for you. I guess other people may be comfortable with it- but maybe a minority.
You asked for any similar experiences. I have something vaguely similar with my partner of five years. but it’s not the same. With you the attached behaviour seemed to be coming mostly from your ex and not his daughter. With me the closeness is driven by the daughter who has no other close relationships so she clings to him emotionally as her only rock.
My partner was widowed traumatically when his daughter, an only child, was 14. She is now 22. They are (understandably) very, very close, they still live together most of the time. She is supposed to be at uni but (as it is nearby) she comes home at least 3 to 4 nights every week without fail. I think that, as well as being traumatised by her mother’s premature death, she is autistic too and reclusive. She has only one friend, so is heavily reliant on my partner for any social interactions- he is her main relationship. For example, on her birthdays she likes to go out for dinner with just her Dad even though they are alone together the majority of the time anyway!
I can see they were traumatised by the sudden bereavement and became dependent on each other. When he is at mine, they text numerous times a day about everything from the news to domestic things such as food to buy, or putting the washing machine on.
Sometimes it does feel as if they are a domestic couple in all ways except physical intimacy. However, in my case, I feel that the emotional dependency is driven by her needs and mental health, not so much by him.
If I’m honest it quite suits me for now, as I still have a teenager at school and I’m wary of disrupting our lives by living with my partner. So we see each other at my house at weekends which is fine. As we grow older though, I don’t know what can happen…I don’t think I could cope with living with his daughter and her avoidance of the world on a daily basis.
Overall- mine is a nice guy and it’s not him who is obsessed with the daughter, he just accepts and, I think sometimes sort of feeds, her complete emotional dependency. So it’s a similar hurdle to another relationship.
I think you did the right thing to not tolerate the dynamic going into the future. Maybe I shouldn’t either!