parenting with ADHD

My husband, who has ADHD (and other things), was a pretty good dad when our daughters were little.  He played with them.  I don't know if it's a coincidence, but he started to withdraw from me and the marriage and family responsibilities when our daughters were in middle school, a time in life when children often struggle with social and emotional issues.  I was the only parent dealing with most of the problems that arose.  I had and continue to have a good relationship with my daughters, now young adults.  We're friends but I'm definitely their mom.  My husband, on the other hand, seems to see himself as one of their peers (kind of like a brother or cousin) instead of as their father, and he doesn't have a great relationship with them.  It's not so much negative as lacking in substance.  I'd be interested in hearing about other people's experiences in this area.