My partner and I have been together for 3 years and living together for 2 years.When we got together,we discussed about his kids and He told me that his kids will always live with BM as he wouldn't expect me to take care of his kids since I had none of my own at that time...and we are not married. His kids are 16 daughter and 8 son.The 8 year old has some developmental issues and has toilet regression,violent outbursts,uses foul language when angry,harms the dog....