Thought we were happy...Until!! I need advice!

[intime]

Rough day again..I just miss my husband so much! I saw him yesterday for a few minutes so he could pay his child support and I still get butterflies every time I see him, but I'm still so upset with him also! My son said he asked about me the other day wanted to know how much weight I lost and how I was doing! Why can't he just ask me that? He still won't text or call for anything unless it's in regards to money or our son! My son and I got into an argument last night about the OW, I asked him if she comes around on his Dads time with him if he would just call me to come get him. Because I don't believe right now is the time for him to be exposed to there new relationship as boyfriend and girlfriend..instead of my friend and my husband. He says he doesn't want to be in the middle of it and just wants us both to be happy. Unfortunately..I won't be happy if he's being forced to spend time with the two of them just for the sake of his dad's selfish happiness! He doesn't understand he can have an opinion but doesn't want to upset either of us so he just plays middle ground! I'm not just asking him to not be around her because of the circumstances but because I've found out she is doing some very undesirable work to help support herself until I'm sure my husband I are divorced! As well as her being a horrible role model as to what a significant other should be, she's also a horrible mother and by no means do I want that as an example for my son! Unfortunately his dad is in the same boat as far as being a horrid example of a husband and father at this time in his life, but all I can do is just explain to him that the choices he's making are wrong! Which he also gets upset about..do I just stop talking to my son about this all together or what?