It makes perfect sense for a 17 year old, who has just seen her parents split in a not-nice way, to feel some jealousy and/or want some attention from her dad when she is with him.
Why would GW be upset by that, or feel ignored? You have to give the kids what they need, and D17 has told you what she needs. You can talk with GW later in the night, perhaps after D is asleep, or during a specific time that she is preoccupied (like watching a show or texting her friends, etc.) It shouldn't matter why you didn't get the phone - you obviously weren't able to talk just then, due to your S, your D, or had a migraine - whatever! Your affection should not be up for competition...
Was GW upset, or just wondering why the call wasn't returned?
Anyway, good to hear that you have so many lovies in your life, regardless! And that the kids get to see you often.
