DUH! Of coz say no la!
Like what u say, its old
flame, not new. To even thought of breaking with present gf
or bf is a sign that you are not really serious with your
realtionship.
Relationship are not easy to build up, to crash it just like this,
is it worth it? Have you consider how your gf or bf will feel if
you are going to break off just becoz "Old flame gao bai to
you"??
Bottomline: struggling with thoughts of breaking only
signify how much you love your present partner 
