Step by step... IF ONLY love had a formula to follow... like
what you learn in maths, AA would cease to exist. 
Welcome to the real world? No such thing as Ten Years Series for
the matters of the heart? You could probably score a distinction by
memorising all the nonsense in the book and spill them out in your
exam papers - to memorise 'model' answers in love... more often
than not, you could not spill them out in exact or the 'answer'
wouldn't be your desired result even if you applied the 'model'
answer. 
***
I will go through a step-by-step analysis for your
heart to see. Forget what you.always.think for a moment and
listen.
You case is very simple - you are reading into her actions.
Don't understand?
Part
1
WHY must a joke/missing-you/whatsoever-lovely-thingy
sms BE a SIGN of
interest?
Why can't it be:
I) Merely forwarding nice message.
II) A gesture of friendship.
If you prefer to think and feel that it represent a gesture of
liking, WHICH must mean that she would OUGHT to accept your date -
then why are you trying so hard to even secure a date? It makes
sense to avoid/reject/ignore because she doesn't like you, in a way
one would like in BGR sense.
Part
2
WHY must you
always equate your situations with events that happened to your
friend?
If you do not see:
I) Everyone is unique, with different personality, THUS leading to
different behaviour, different reaction. (Receptive reason)
II) How you apply your stance/method... the feel... is different
although it may seemed the same? A good analogy would be when you
push a ball, every different push has a different force. It's
almost impossible to push a ball manually with the same force each
time. (Inititate reason)
If you prefer to see your situation the way I talk about how Ten
Years Series Model answer/expected result never works for love, it
clashes with emotional and intellectual logic, thus creating the
confusion and doubt and you not understanding why.
Part
3
If you think that you would get some kind of
reaction/result from her by ignoring then act upon her reaction -
then you are in for a game of seduction. You THINK by doing that to
her, namely the act of ignore, actually meant ANYTHING to her? If
you were to think very carefully, this is actually applying to you,
not vice vista. (She ignoring you and occasionally drop an
SMS).
And you actually fell for it because this MEANT something to you.
You are affected emotionally and mentally... causing you some form
of agony. But do you think it is the same for her? I seriously
doubt so.
Advice
Going through all three parts, CAN'T you see that
you probably only have one option if you want to end this, for good
or for ill? You can continue, listen to your heart and support
yourself WITH your friend's case (managed to get the girl he wanted
after years of waiting/chasing/or whatsoever) - then go what your
heart tells you.
You think merely one case represented by your friend, through
relentless waiting and chase, represent a good statistic? To be
truthful, most guys actually FAIL through waiting and
hard-sell-relentless chase. If you want to succeed through this
attempt, it depends on your scenario. For your case, I don't think
so. Scroll through all past AA's post and you would discover that
there is actually quite a high rate failure-repeated-similar case
topic/post of endless waiting, etc.
AND, WHAT makes you think that EVEN if YOUR friend managed to get
her - it promises fulfillment? Very often, it represented
alternative choice, rebound, etc.
Conclusion
The conclusion for my step-to-step analysis is: to seriously
consider moving on with your life, without actually believing you
can get her in the future.
Cheers
