Two phone calls in the past month is way too long. You need some face time with her.
How about starting off with a video conference call between you and the boys. Then you can see if you can actually talk to her eye to eye.
When you call her, ask how her day was. When she answers, respond favorably to her as if you were talking to someone you were interested in dating. Act as if you were still together.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.