As said above 9 months is very early recovery especially if we can talk about an A's THINKING and EMOTIONAL MATURITY.
It takes most of us at least 2 1/2 to 3 years before we are ready to attempt a relationship. I know I was there. Also for many years now, I have been a sponsor in both AA and Alanon.
There is no way i was anywhere near ready to become involved in 'relationship' at 9 months and I can also tell you that I don't think I have ever had a sponsee that was 'ready' to get into a relationship at 9 months.
I too, like Threshold, have to say;
Having been sober and clean continuously (no relapses) for 30+ years, I would suggest you don't go there for your own sake.
Don't ruin your 'friend relationship' by changing it to a 'love relationship' and yes you will ruin your friendship status. He is no where near ready for an emotional relationship.
J M H O based on many many years of 'working with others.'
Love and hugs,