So I could fit into many different categories on this site but I thought this would fit best here.

My husband joined af in sept 06 I have a almost 4 yr old from a previous relationship and we have a almost 3 yr old together.
we are pcsing to Japan in a couple of months My 4 yr old went with his dad for a while before we head to Japan ( about 5 months now hes been away) My husband hasn't seen any of the kids at all he's been at school the whole time and hadn't made it home for many diff reasons.
I recently quit my job so It is just our 3 yr old and me right now.
we have play dates about once a month and then every Sunday at church he is with the other children for 2 hours while I'm in class.
One of the other moms put her son in to a two times a week 3 hour session preschool I entered my son as well thinking he needed more time with kids not just mom (brother has been gone for a long time and asks for both daddy and brother every day very sad makes me cry just thinking about it, sorry anyways)

He has been two times to class He has been acting up more and more like when I was working full time not listening pushing me away not affectionate and gets very upset if I change our day at all
I am thinking I need to pull him out or should I just give him time to adjust
I can take any think you throw at me 8 months of separation from my husband for the first time it fucking sucks but I can see the big picture and I just pull up my big girl panties but seeing my little boy like this...
I am at a total loss (every one has a weakness well my kids are mine I am a pretty tough cookie but man I'm not sure what to do about this) ANY advice would be wonderful and please let me know if I just need to deal thanks.