Errr I am not sure that ..."ending up with nothing:" should be
your primary concern at this moment.
You obviously have an explosive situation here... but what the hell
is wrong with your current gf?? you made so many reference to her
being chio too!
What I see happen to people is this... when they have someone in
their lives, especially a chio girl or guy, their confidence and
ego goes up and they unconsciously starts thinking... I'm more
attractive than I realise and bec of the ego boost, they become
confident that they can attract another girl guy and UPGRADE! no
not kidding. and that is why they are constantly on the lookout for
someone more chio than what they have and they then try to get that
new chio girl etc.
Fair enough that in your instance, you may or may not have had this
upgrade mentality but by going along with the sis, you are playing
with fire.
Whatever problems that you may have with your gf, sort it out.
There must be reasons why you love her as you said you do. focus on
that.
If the younger sis wants to go on the love path or war path... let
her do it... usual saying it takes 2 hands to clap... you stop
encouraging her she will have nothing on you. you may still be able
to save what you have with your gf.
but what the hell, if you really want the sis, then dump the older
and go for it. use next week as you said to express your "lust" I
mean "love"... but guess where you will end up??? you think there
is a future? you think you can get married??? you think the parents
will forgive you? you think anything good can come out of
this???
But again... the tot about "may end up with nothing" should not be
the driving force behind your actions... that would be wrong bec if
your gf is the wrong girl... you will still be the looser when you
succeed to retain her. What you have to do is to figure out
yourself, why you love this gf and what are the reasons to carry
on.
Whether you carry on after that... at least it will be for the
right reasons. as to whether you have a chance with the sis....
hmmmm just dont end up in jail ya!