Most Helpful Girl
Trust me you're not selfish.
Most Helpful Guy
You're already 15. How long is your father supposed to put his own life on hold for you? He doesn't need your approval for who he dates or eventually even marries. Hopeful, out of respect for him, you will act respectfully to the women he chooses to have in his life.
Yes, you need both your parents in your life. But each of your parents may need (and want) more than just you in theirs.