Did you reply to his email? I hope so. I would have thanked him for being open and honest with you. I know my H wrestles with himself almost 24/7, he still can't understand how in December 06 he stayed up all night working on my Christmas present and by May 07 he was sleeping with someone else. He honestly says he doesn't know what happened even though HE did it and not me....
So I am sure your H is very much 'in his head' about this stuff. I wouldn't want him to just 'be there with you' like it kind of sounded in the bottom part. But he was repeating that no matter what decision you make he'd always be there for you, so I think that IS love...