Your H sounds as though he is sick and in need of help -therapy or counselling.
I think you will run through a whole range of emotions now.
It does sound as though your fear of things like the post etc has been brought about by living with someone who is deceitful - even if you didn't know the details I suspect in some way your gut was telling you SOMETHING was wrong.
I am so sorry that this has happened to you, but this is a great place for support, and I am sure, in time and if you want, you will find another man who can love you as you deserve to be loved. Of course, if your H receives the help he needs, perhaps that OM might be him!!!!!!
Saffie me 46 H 46 M in 1986 D20,D18,S16,D13 H's A 01/05 to 07/06 H recommitted to M 07/06 renewed vows 09/06 Going from strength to strength