  Individuals often develop reluctance to change their social relations, called
"secondary homebody", even though their interactions with their environment
evolve with time. Some memory effect is loosely present deforcing changes. In
other words, in presence of memory, relations do not change easily. In order to
investigate some history or memory effect on social networks, we introduce a
temporal kernel function into the Heider conventional balance theory, allowing
for the "quality" of past relations to contribute to the evolution of the
system. This memory effect is shown to lead to the emergence of aged networks,
thereby perfectly describing and the more so measuring the aging process of
links ("social relations"). It is shown that such a memory does not change the
dynamical attractors of the system, but does prolong the time necessary to
reach the "balanced states". The general trend goes toward obtaining either
global ("paradise" or "bipolar") or local ("jammed") balanced states, but is
profoundly affected by aged relations. The resistance of elder links against
changes decelerates the evolution of the system and traps it into so named
glassy states. In contrast to balance
