I completely understand your sitation. I have been also there.
I moved to Chicago for my husband in 2004 b'cos we got marry. I also quite my favorite job and come to usa. Now I have a 8 mos baby girl. I take care of her full time.
but now i want go back to work, but i do not enjoy working in usa. b'cos they are so lay back, and I'm a chinese, i don't think i would have much promotion opportunities as the american. so i have a thought wanted to go back to work in HK.
but i still choose to stay here after consulting with friends, it is b'cos of my baby. i think she receive education here better than in HK. b'cos i saw many things in HK on this trip (i just came back from HK this week). my friend's kids are so stressful in school and the adult are so stressful in their life.
there is no perfection in life. you gain something but you will loose something in return.
for my case, i give up my career for my husband and kid. but i will find happy in other way in my life.
so you got to choose by yourself. good luck to you.