I don't think a partner will ever EVER be able to love you the way your parents will. There is always some element of benefit involved, sex or career or looks etc. But I've seen kids leave their parents for a partner which saddens me sometimes. Especially in today's time it's hard to trust anyone apart from your parents. I mean if you have had an abusive childhood then that's something which is a completely different case but I have lost faith in relationships and marriage as an institution.