P.S: As for your daughter, don't give her to much power and freedom of choice because she might see it as a "you don't give a sh*t about her". Be consistent with your attempt to contact her. You are the adult and she wants to be one. (teenager). Show her how adult really show their love and affection with RESPECT. Find her point of interest and get involve with her. Do an activity and give her the opportunity to bring a friend along.( That is priceless because you get to listen in and ,it gives you insight on how they see things.)
She needs to know that what happened beetwin you and your wife will NOT change the love that you have for her and your son.BTW, she might have a bit of jaleousy towards her brother's relationship with you. You seem very close to him. Try to get her involve. ALWAYS invite her to come along. VERY IMPORTANT!! My XH always assumed that my D15 wouldn't be interested in going with them. Never invited her to go, wich in her mind became, "he doesn't want me." NOT TRUE!
She will refuse often but i swear, one day, she will say "YES",and the feeling you will get that day will be PRICELESS. Don't give up on her. You are an amazing father. Don't let a silly divorce take that away from you. It can"t. You will always be their father and YOUR LOVE will never stop growing. They need to KNOW AND FEEL that love.