Vrie,

Welcome to NeuroTalk. From the information you posted, it is hard to give much help.

Some questions for you.

Does he and/or his family participate in a Brain Injury Support Group ?
Do you sense that they try to keep him protected at home?

Are your dating questions hypothetical or do you have an interest in him ?
Your historical relationship with him is history. You need to determine what his personality is like now. He may continue to improve is some skills but his personality is not likely to change. You may notice parts of his personality that are gone and new parts that you never saw before.

This does not mean you can not have a good relationship. It will likely be difficult. With 2 special needs children, you may be taking on quite a load. There will be a need to develop responses to his struggles and personality glitches that takes concerted effort. ADHD/OCD and TS may make it difficult between your kids and him.

I may be way off base but from what you have said, this is my first impression.

My best to you.