Dear Lissa, I send you hugs of comfort and lots of encouragement...so that you won't let this latest turn of events get you down.
I know how devastated you feel at receiving the news that your H has filed for D.Just remember that it doesn't necessarily mean that a divorce is inevitable.He has been compelled to follow this path and perhaps he needs to play it out a bit.
Obviously,his guilt over his infidelity is pushing him to somehow legitimize his affair.I doubt if he will feel any better and the OW may be behind his actions.Your marriage is not over by any means at this point.However,you must focus on YOURSELF and your OWN needs.
This is not about you,it is about your H's unhappiness.He may have some serious problems to want to leave such a brief marriage.It may be a pattern he is repeating.
Lissa you deserve much more and he knows it!He may come to his senses,but you must get your life in order without him.Your only hope is in that he sees you are attractive and successful without him.In many cases this draws a spouse home again.
Good luck tommorrow in protecting yourself legally and in find some peace of mind.
