The problem seems to be the fact that your bf is not bringing in any money. Does he receive worker's compensation or disability? If not, is he capable of doing any type of work to support himself and his children? He really should be contributing to their support as well as maintaining a relationship with them. It would be horrible for the children to lose their relationship and time with their father; the relationship is more important than money. What is the situation with the children's mother? Is she able to support them and care for them, or are they being neglected? If they literally have fleas and are dirty, then child protective services should be involved. Where is your anger toward the children coming from? The problem really is with their father, not with them. They're just kids; they can't support themselves. The father should be doing more, both for them and for you. Do you know why you feel resentment toward the kids rather than him?