Ok. This is also what I'm struggling with currently! Great advice everyone. My husband left 7 weeks ago, complete shock to me. Said he'd been unhappy for a long time, felt he loved me but wasn't "in love", etc..
He moved out that night (with a bag of a few essentials) and that was that. I've seen him twice since and spoken on the phone once the rest is always via email/text, but he will only respond when I initiate and he will respond to questions regarding bills, or whatever. At first he was really angry, blamed me for everything, said I'd been so controlling and manipulative, that he felt he'd had no choice in our entire relationship, said he'd been wanting to leave for a long time (what???), etc. In the last little while he's coming across as being fine, moved on, going surfing with the friends he's reacquainted with. When asked how he was doing he said 'good!'. Like I never existed. It's been 7 weeks! I'm devastated, beyond devastated. I can't stop crying. Can't stop missing him. We were together for 11 years! We were a great couple, always did things together but also had our separate interests, liked all the same music, etc. He wrote "I love you" in my bday card days before he left me. WTF.

Now he's having a grand old time living by himself, surfing with his buddies, completely neglecting me, the house, our dog, etc. Seems to have come out of his 'deep dark hole' (as he'd called it) quite nicely. It's so confusing.