What I'm reading is that her relationships are based off of her relationship with her Father, and that the relationship with the Father was terrible.
The woman in her feels that she needs a partner that reflects something that she was looking for in her Father as a person (no, not a lover). The Father didn't have these things, and the people she got involved in reminds her of her Father (irregardless of whether or not she feels a sexual feeling for the Father), and so, she thought that maybe she could find the personality traits she needed from her Father, but felt repulsed because while looking for deep personality traits, she was dealing with the ones evident in her Father through her current lover already, making it hard for the relationship to work because she's already been in a relationship of sorts with what she dislikes, hence why the relationship fails...
She could be looking for someone who was strong, but kept getting involved in a closet drunk, hence the lack of strength.
She could be looking for someone who has charisma, but keeps finding someone who lacks guts and goals.
She could have been looking for someone who would be more caring when it comes to finances and keeping the family afloat, but keeps running into men / women with a gambling addiction.