Magic, I'm glad you spoke to your XSO's friend. At least she knows that you care and feels comfortable in talking w/you for a bit. It was nice of you to offer a suggestion to your XSO about the program that would help out w/his mother. What he does w/the info is on him and now you need to let it go.
We have pointed this out to you, Matt especially, in the last few days, that you are no longer a part of that family unit. You are a business partner and possibly looked upon as a friend. Your XSO is handling things his way w/his mother and unfortunately doesn't sound too receptive to advice or suggestions. Try not to take it personally.
Magic, you have to put the "family unit" out of your mind. You are separated from this family, have lived on your own for almost a year and now it's evident more so, that your XSO does not want you involved in his family unit at this time. I'm sorry, to be blunt, but you've got to see the handwriting on the wall...he only sees you as someone who works in the business.
You've got to let it go and treat him as someone you do business with, such as the mailman or a grocery store clerk for now. You are still "expecting" him to react a certain way and when he doesn't, you become disappointed and hurt. If he needs your help or advice, he'll come to you. For now, leave things be w/him. If you want to continue to stay in contact w/his mother, by all means do so...but w/no expectations of getting a reaction out of him.