Hi R.,
You and your son are in that transition from a mother / child role to a mother / grown child role. I hope you feel there is a wonderful foundation of unconditional love in this relationship. If not, start verbally and physically demonstrating your love - daily. The next step involves talking, talking, talking - as much as he is willing. You can show him how to listen respectfully and interact appropriately. You can listen to what he has to say, acknowledge it with, "I hear what you are saying, I'll give that some thought" or "thank you for your opinion, but I feel this is my decision" or something like that.
As you are stepping back and respecting his growing independence, you still have the opportunity to draw a firm, loving line that he as your son should respect. This might be challenging, but it is definitely doable.
It sounds like you and your son are approaching a crossroads. Your next steps are important in determining where your relationship goes.
I'd be happy to talk with you more about this.
Good luck!
J. B
PARENT COACH