Silver I personally think forwarding the mail ( letter ) to your L is the BEST idea!- Sometimes these WA try to play on our emotions , our hearts, knowing we are loving people - maybe even trying to take advantage- not saying your H is, just it is known to happen Our L can sort it out without the emotions involved- a little harder for us.
Its 7 yrs since my ex left, D 3 yrs, he was fired from his job ( not laid off, but fired) from a 6 digit job in this economy!! He called crying that he had a "problem" and was his life worth living? I felt as my son's father I owed it to him to talk him down, support him, made sure he got help- He seemed sincere.... for awhile, now that everyone has accepted his weakness shall we say, he is back to his old tricks- and here I and others who helped him feel a little used.
So you never know in their MLC madness if its sincere, its really rock bottom, or the first of a few rock bottoms, or if its all a play
Just remember as bad as you do feel for ex and I can imagine you do, your human, please put yourself first! and dont be ashamed, you deserve it! you can be firm but kind
Be Happy for this Moment, This Moment is your Life