It's the time where you have decide to explore new
route in love, in exchange for something vastly different; may or
may not expected it, your boyfriend is certainly a different league
outside that of your previous relationship/s and you, hoping that
by engaging a relationship with an older guy, things may be turn
out well for once.
I feel that you do not classify yourself as a classic player; the
crux of your volatile passion lies in your highly mutable (Worst if
you are Gemini, Virgo, Sagittarius or Pisces) nature in love, where
your attention span is easily dissipated and it takes much to
capture your soul. I do not doubt your innate ability as a player,
but a classic player usually wouldn't envision anything other than
a myopic view of any particular relationship, living for the moment
more than making plans or doing the 'right' thing.
Somehow you demonstrate your own version of loyalty (via length of
relationship) and even sustain a bad relationship for two years. In
fact, classic players loved themselves far too much to allow
themselves to be manipulated in that kind of karmic manner. Classic
players understand the game of love... to the point of arrogance
that they knew they could get anyone they set their eyes onto and
there is no reason why they should ever suffer in a karmic
relationship, which contribute partially why they are are often
seen fleeing from relationship to relationship.
When the spell is broken, reality fills in the void.
I believe you are overwhelmed by fatigued... tired of trying to
build the persona you know man will love you for. Perhaps this is how you have
been leading your BGR or sub rosa relationship; you
create the phantasmal image of what you reckon your man likes, by
understanding him and trying fit the perfect piece in the
puzzle.
The energy exchange of this deal is when your flings showered you
with love, care and attention (perhaps lovely gifts as well). But
you arent willing to trade anything else (sex was never part of
this deal) and of course, when you have decided that the result was
gradually getting lacklustre, you eliminate those flings and seek
for newer pasture.
The other guys is your life are like simple arithmetic question
while your boyfriend posted a real challenge to your seduction
because somehow, it wasn't wholesome and you conclude that to be
the intellectual aspect of him. I see the way you phrase your post
and it just flashes to me that you are just not satisfied with
owning him physically and emotionally - you want see your man
surrendering to your love completely, which is why you tried to
keep up with him in a realm totally alien to you.
This building of persona/facade has evolved into a modus operandi
in your methodology of relationship - that you will subconsciously
find yourself trying to force a piece into the puzzle, even if it's
just not you. How tiring could it be, if we allow ourselves to keep
doing something that is so not us?
Never enter into a relationship, knowing fully well that someone is
'nothing' and you want to breed 'something' into him/her because if
you desire that 'something', you should find someone that is
already well equipped with that 'something'. A fine example would
be if one terribly desired a romantic partner, never choose
square-down-to-earth man that cannot give you the kind of romance
you crave and attempt to induce romance out of the poor guy. For
your sake, he may do it and think of new ideas to appease your
needs, but gradually, he will become exhausted and jaded because he
will realise that is just not him.
You could be suffering from this phenomenon - your enervated
emotions after long period of persona building. Or perhaps the
reason why you are so keen in trying to keep up with his
intellectual capacity is because you want to minimize the existing
chasm that divides his world and your world. 
***
After understanding what I have written above, I
wouldn't suggest attempting to suit and accommodate entirely into
his world because the transformation will eradicate the ORIGINAL
reason why he fell in love with you (the exception is evolving; but
if you have evolve into that new form, you will never feel tired
nor fatigued walking in those new shoes. I mean it's noble to be
wanting to be some form of support in his career, but then again,
if you have blister walking in those new shoes, it probably
suggested that those shoes doesn't suit you).
If your man wants an intellectual woman and views that quality as
critical, he wouldn't even be with you in the first place because
he would probably choose some other woman with that mental
capacity. If you sacrifice much of yourself and try to fit yourself
unrealistically into that frame, you will probably be a 2nd grade
version and simultaneously, lose the ORIGINAL reason why he fell in
love with you.
We must recognise that everyone is unique - even if we come
together in a relationship, that fact remains largely the
same.
He's a boring chap because you haven't enlightened him on proper
social technique/skills to date and please a woman. He may be
intellectually superior to you, but you emotionally superior to
him. You may have done much to understand his world, but has he
been taught to understand yours?
Share your strength with one another - you will find greater joy in
your relationship when the gap is narrowed through intensive effort
contributed from the both of you.
Cheers
