not onli in sec sch that young r/s change so fast de
loh...depends on people one...for some ppl they can b tmm for very
long period of time, like those angmoh couples, old liao still can
like young that time dear dear here darling there...but its
different for most asian couples...
in asia ppl r more like, aiya oso not young liao still tmm so much
for what...such that young ppl oso tmm for awhile nia...not
everyone can b loving n honeymoon-like as when they r in the
beginning of the r/s...actuali for quite a number of couples, it
onli lasts a few mths...
moreover, these days girl's expectationg very high...if u not
romantic enuf, they oso no mood liao...sometimes its not that they
dun love u anymore, its juz that, it reaches the process of
settling down...this period can sometimes b one of the most sian
period, as topics start to run dry, n each or one side start to
take the r/s as part of his/her life instead of everything in her
life, if u understand...this is the part u haf to go thru n
understand n give her space...as long as u get past this stage, the
r/s will kinda get into a deeper stage le loh, so its juz a phase
to go thru...
however, it may oso b tough if ur those kind who wants to b
romantic thruout the whole r/s or at least for a much longer
period, whereas ur partner doesnt want...this makes u desire more
whereas ur partner does not give in, n may feel restricted by u,
which seems to b what is happening...therefore it is adviseable for
u to evaluate whether she is reali the one for u...will u two reali
last tgt in the future?can u two live tgt if this carries on?u may
wan to b romantic while she may juz wan to b practical...
also there may b a possibility that she may not b liking u anymore
or as said, start to feel that the r/s is boring...if so, she may
not b truly in love with u, but instead juz in it for the fun...a
r/s is always sweet in the starting, tts y some ppl enjoy having
alot of r/s, not sayin that she has to b one, but im juz not ruling
out the possibility...
try to talk to her n understand the situation from her, tell her
how u feel n all...all in all, good luck 
