I regret to inform you

The madness of regrets, not to be confused with the madness of misgivings, which in fact don't really qualify as "madness of" emotions (misgivings are light weight ponderings that contain within them the possibility of things working out in one's favor; regrets are the real deal; they can do you harm and disturb your sleep).
The madness of regrets.
Regrets, those slobbering jaws of the past clamped on to your ankles, dragging you back into the unforgiving swamps of yesteryear.
The madness of regrets are married to the madness of "if only's"....
If only we had no regrets.
I regret to say that this is quite unlikely.