Another's image.

When men seek for a wife they seek a replica of a woman they hold in their eyes, it could be their mother, sister or a friend from a past that they couldn't keep.

Girls do the same; father, brother or a friend they couldn't keep.

The error is how about who a personality is? Regardless of the first notion/sentiments, at the end we deal with realities "characters" and circumstances "cultural prejudice" it often doesn't matter what were the sentiments originate from, it's what you did to keep that bond growing.

If siblings and friends don't get along what then makes those sentiments strong?

If parental care is based on securities yet one has to cut the accord to be independent/grow, then what makes that sentiment strong?

A totally independent person also has issues as relating involves some attached  strings and it better be directed towards the future or one becomes the poppet of the past.

I am sure no one likes to live in prison of another's image regardless of what their social position is.