In addition to loving him, she might:

- plan to have children with him in the future (conceiving children via intercourse with a man is free vs doing that via artificial insemination from a donor in a woman-woman couple could easily run into thousands of dollars)

- again, plan to have children with him in the future (raising children in a man-woman family is easier in terms of being accepted by the society than doing so in a woman-woman family)

- enjoy his company out of habit and a sense of routine (she has been with him for 9 years and with you, only for 2 years)

- be financially dependent on him

Do you visit her/them or do you cohabit with them?