You may be happily surprised as time goes on.
I've had my oldest cat, Philly, for almost 5 years now. She is STILL changing in small ways as time goes by.
Part of it is probably because of stress caused by a cat, Tiger Lily who was Cat of the Day here in May '09, whom we ultimately recently re-homed because she didn't get along with 2 of the other cats and kept getting sterile cystitis.
Even before Tiger Lily joined our family in May of '08, Philly was not the most sociable cat. She really didn't want anything to do with my husband.
Now, she is out with us in the living room all the time, she is starting to get comfortable and bond with my husband and she gets on my lap once in a while for short periods of time.
So hang in there and give it time...don't push LooLoo, let her do things in her time.