You could consder that flirting, yes.
If its a constant pattern of him doing stuff like that when you see him,
he's either a really playful jokester, or he likes you.
Just dont get the two mixed up :)[OrangeLove]
I'm commenting because I've been on both ends of this. As a child my parents divorced, too, and me and my brothers probably thought nothing of it initially, but today maybe we think a little that it was us. Is that the case? No. That was between my parents. So getting to your business, love both of your parents, today and always. Unless they've done something physical, emotional, or verbally to abuse you, just love them. You will understand this more when you get older. You can not replace parents who love you and I'm sure your father does no matter what happened between him and your mom. So, as a parent myself who has now been through my own divorce with a young child, love, love, love. Hopefully my daughter will understand when she can about what happened between me and her mother, but I still love her more than anything in this world. She loves me, too,and I see her when I want for the most part. She loves that. I would convey to your parents that no matter what happened to them that you still want them both in your life, not talking, but seeing each of them, too. It's important. Just tell them that. Good luck.
