Seems to me that you aren't ready for the intensity he apparently intends to demand. After so short a time, it's really not for us to say anything good or ill of your dom/master.

Does it seem that he is overly possessive? Perhaps. It could be inexperience on his part, it could be that he's had bad experiences with new subs in the past. Or it could be he's the type who likes to take total control. I once had a "test relationship" with a sub and she needed and wanted to be completely controlled right down to her daily clothin choices... but that's not my style. We all have different styles.

That said, realize it is indeed all about style and if style doesn't match yours, then take you leave and look for someone whose style fits in better with yours.