KG (((Hugs)))
I agree that it sounds partially remorse and part manipulation! It sounds as if you are doing the right thing by holding off until you can handle dealing with the situation but, I think others are right it is a good idea for him to know what is going on to the degree you feel comfortable with. It is a difficult situation when a child is inovolved.
My XA use to use his son (4 years old) who totally ADORED me! He even showed up at a store one time (following me of course) with his son and his son was hugging my leg and saying "I miss you" etc....I had tears in my eyes kissed him and turned to my X and said "you are a real A-hole" he was like huh? Nice really nice the kid loves you.....Grrrrrrrrrrr just got me so angry-my situation is different because it was his son not mine-I wished I could have said goodbye to his son-
Keep your head up your doing some amazing parenting there!