How do I not let this control my every thought?

[Travis]

current GF is my wife. He has custody of two of his kids. They are autistic, the oldest about 15 is severely autistic and abusive. I know two teachers that worked at her school that quit because of her. She broke one's nose and one's arm. Definitely not where I want my 4 and 7 year olds to be. She's already told me and our school's principal and everyone else that my boys will be going to school in the town where he lives next school year.
I'd be surprised if their R lasts, maybe it will. As I said, don't see how you give up 11 years for someone you've known 3 months.