How do i get rid of them?

hey!! i was in that same situation with my dad. uhhhh..i hated it!! this is what i did...one day i told my dad i needed to talk to him. he agreed. i told him exactly how i felt. he totally understood me. my dad is still with his girlfriend, has his fun with her, but also spends his time with me. communication is the key...i wish you the best of luck...