hiya bro...welcome to the world of jealousy...
We both have the same situation here...at least for me in the
past. Have a girlfriend who is older than me...but age doesnt
matter...no matter how i say and reassure, jealousy still steps
in.
for my case, B was my very good female friend since sec2. She
was my ex-classmate for once...like you, I once liked her
alot...but it was only one-sided...after we graduated from sec
school, we went to the same ITE, same course, same class. So for
the first year we stick quite close to each other because we were
friends from before...blah blah blah...
Then the girlfriend part was that she wanted all connections
with her to be broken. Not exactly all lah...still can talk in
class, do projects, help each other out, etc. No sms, no calls.
Lucky for me was that her boyfriend wanted that as well. This is
because she is scared that we will be back together again...
After graduation we no longer contact each other
anymore...occasionally a few smses like on her birthday...but didnt
tell girlfriend that is...not even getting birthday present.
I wouldnt say this is a bad thing. On the positive side, it
shows that she really care alot about the guy. Maybe a clean break
from ur A would be a last resort solution...where all verbal
assurance is of no use, this is the last one.
After that B is no longer the core problem for my
relationship...not sure if i missed out on ur whole story...lazy to
read all the posts...