Dear Milo,
You know that her heart does not want to be selfish, but that the influence we have gives her selfish desires. You know that she sometimes feels selfish, but doesn’t want to be seen that way. I want you to capitalize on the moments when she realizes her own selfishness, and make her feel intense guilt for them. Extend this feeling into an idea that anything she does for herself is wrong, to the point that she doesn’t take care of herself and runs dry. Don’t let her remember that in order for her to pour out the Enemy’s love to other people (which she unfortunately wants to do) she has to be filled first.