Get thee to Alanon my friend. It will help. trust me on this.
Good for your dad for wanting a better way of life. I'm glad you had that breakthrough even though it felt like a breakdown. Better out than in and this is now your time to heal as well.
Your initial question about dating -- I think it takes someone exceptional to make me take notice these days. Otherwise, I can't be bothered. Too much else on my plate. Also, I find that I look at people and think weird thoughts, "Do I REALLY want to take the time to get to know this person, their friends and family? What's the point?" Seems like too much effort.
One friend told me I was too busy dating myself. If that's the case, it's going well, lol!
good luck to dad and hang in there Pinn xoxoxo
M 20+ T25+ S ~15.5 (BD) BD 4/6/15 D 12/23/16
"Someone I loved once gave me A box full of darkness. It took me years to understand, That this too, was a gift." ~ Mary Oliver