I am not really good at giving advice unless I read on a post that is familiar to mine and I put my 2cents worth.
He only said once in the beginning back in September 06 that she makes him happy. But he has been living w/her for four to five months now and has introduce her to his mom,dad and his siter. Whe he did that I told him that I guess it really is over by him doing that nad he said no that he still was not sold completly on her and introducing meant nothing by it.