My boyfriend of 4/years has been living with my children and me for the past year. We love him, but its changing, he's not engaging with the kids as much,he's not keeping his share of the bills paid.and what makes it almost a deal breaker is his 18 year old son who spent the summer with us, wants to live with his dad once he finishes high school in June. Him staying in my home all summer was a nightmare. He is messy, and very disrespectful. He accused me of cheating on his father.a complete lie.