Welcome to Yorkie Talk.
Never put yourself between the dogs or try to physically pull them apart. If you are playing on the floor when this happens, try getting up and withdrawing your attention, even leaving the room. I often announce that I am leaving, "Okay, I'm leaving."
If you are holding Angel in your lap while you are sitting on a chair or couch, put Angel on the floor and withdraw attention from both. I know it seems unfair to Angel, but withdrawing attention from both will usually stop all aggression.
When my boys get out of hand wrestling, I raise my voice to call them to attention and then tell them to settle down.
Keep up with the walks, and if they know basic tricks like sit, down, shake hands -- work on those with them together, rewarding them with treats. I use kibble rewards and the tricks for treats helped my boys form a bond with each other and me. It's a good distraction, constructive behavior, to break up the jealousy game. Only takes a minute or two of this to make them forget the jealousy.
I agree with you, time settling in with you will help. Good luck!