It sounds as though things have changed quite a bit since you began seeing him, or rather he has changed quite a bit since the beginning of your relationship, which was only 5 months ago. It does appear that you have reason to "draw back" and re-evaluate your relationship and what each of you expects from the other.
The fact that he is seeing someone to help him is a good sign, though you may not see any results for some time, if ever.
Is it possible for you two to have an open, non-accusing conversation about what it is each of you wants out of your relationship? The ability to opening communicate is key in any relationship, and if you can't do it (for whatever reasons) things will continue to be hard for both of you.
If the relationship means a lot to you, and you really want to work on it, perhaps a couples counselor might help you negotiate this tough time.
Regardless, from what you have written, I am seeing some signs of control issues on his part. Seeing as though you have just come out of a controlling marriage (not long ago, I might add
), I urge you to use caution and not jump into another controlling, hurtful situation. That is not to say that the relationship is "doomed" but that it may be best to slow down and open up the lines of communication so that you are both getting what you need from each other.
I hope this helps!