In my book, any dad who wants to spend more time with his kid is a HUGE HERO.
Don't apologize for wanting more time with your son. State what you want and try to work it out politely. If anything, I think she will like the fact that you are so into Weeman. If she doesn't like it then she will in fact be living the consequences of her actions. Both of which are pluses for you. So why wait?
Me:39 H:40 S:9 D:7 First Bomb ONS:June 07 Second Bomb OW: March 08 Separated: March 08 M:15 yrs T:18 yrs H deep into A with OW Achieved ACCEPTANCE May 30, 09