I feel that a very dear friend (I'll call Mary), is being taken for granted. I've tried to say that she is being used, but she feels that she has to do this, to help this friend. Mary and DH have a long-term male friend. Mary's DH and he are best buddies. Mary had her own babies early and they have now left home. She works full-time as a nurse. Their friend is divorced and has his 3 children (aged 4, 7 and 12) on weekends. For the last 2 months, the friend has arrived at Mary's house on the weekend with kids in tow and he and her DH go off to football game. They are gone all day and come home late at night. Mary has had to look after and feed the children; usually also putting them to bed. The 12 year old is awkward and does and says what she likes to Mary. On the other day of the weekend, she goes to help her elderly mother. Her DH can't see what the problem is, but my friend is exhausted. Some advice please!