Sometimes things happen, with all the the things that follow, it can simply become an abyss of nothingness... no longer holding that anger/frustration or any such emotion. So when someone extends that olive branch, why not take it?
Nothing to lose, but possibly much to gain. Sometimes things fall...and amidst all the wreckage and rubble, you can forget how great it was when it stood strong.
Simply put: I'm letting bygones be bygones.