It sounds as if you are doing a lot of tiptoeing around this man's feelings. What about you? How do you feel about a man for whom your DS is a potential deal breaker?
Fair enough if you have to down a bottle before you can bring up DS, but presumably he's helped you with the bottle, and his answer was still basically "Thanks, but no thanks." No warm fuzzy moment of optimism and openness for him, then.
Also I do not like at all the bit when (in a nutshell) being with him makes you feel that your DS is cramping your style, and thinking like this making you feel so awful that you cry. WTF? He is supposed to make you feel good, not confused, not worried, not that you have already messed up everything because you have a child.
He is not being honest by avoiding to consider a major part of your life, he's just being selfish.
Also, I do not buy this emo state under wraps and being a private guy, he sounds like a cold fish, especially when you consider the imbalance of emotions between you wanting to introduce him to your DS and him not having even mentioned you to his family. At this stage, he clearly does not think that you are going to make the grade.
I have read your posts very carefully and I am very sorry to say that IMO, you are wasting your time investing emotions and hopes in this man.
If everything was right, after 2 months, you wouldn't be sad, confused and worried.
I think that for some guys it's a little too easy to prey on single mums who are craving the comfort of a relationship and are prepared to be very very patient and accommodating with regards to their own needs. Those guys always seem to wrinkle up their noses a bit at the slight whiff of 2d rate goods, with the baggage, etc.. although funnily enough, they manage not to be too turned off by it in the bedroom.
So, this is where it could become interesting, because you are obviously very attracted by him. If you can trust yourself to enjoy having some "me time" without being destroyed by the lack of commitment, why not have some fun? Have some non-mummy time when you can snatch it. Enjoy the attention, be selfish. But keep your DS well out of it.
It sounds cheesy, but when the right man comes along, you will just know, and your DS will not be an issue.
Gosh I wished someone had said all that to me years ago.
Bonne chance petitfromage.