This is very interesting and quite telling. Where I think she’s missing the conception of self-giving love in Christian thought is in that love -if it is to be LOVE- is in it’s very nature free and uncompelled. What’s more: the Christian Faith certainly recognizes varying degrees, origins, and characteristics of love. There is certainly erotic love, love for one’s self (i.e., the lover) to be satisfied by the object of love (i.e., the beloved). There is common love (i.e., brotherly love), by which there is a unity of interest and intention. There is, further, self-giving (as she’d call it, self-sacrificing) love, which is free and personal, rooted certainly in the value of the other, whether it’d be a virtuous sort or (as in the case of the imago Dei) an intrinsic sort.