Daddy and Younger Girls?

I've said this before about Dear, before we were together she had a problem with being intimate with older married men. Since Dear and I have broken up I have found out that she and my dad have been talking to each other on the phone? I don't know about you but I find that a little bit odd. Supposedly she's been calling him and he's been calling her just to let her know how I've been doing? Now guess what? I found out that she came into town last week and my dad takes her to lunch? I have explicitly asked my dad to leave my ex-girlfriend alone. He assured me he would. Now she drives 5 1/2 hours to have lunch with him, and all he can say is well she called and asked? CRAP!!!!