Welcome! Sorry you're here, but the vets here know their stuff.
Don't give up hope!!!
Your H sounds a lot like my W. We were always close, and had fun together, but once the kids (9, 6 and 4)were born, we were so busy with them, we forgot to make time for us.
My W has also suffered from depression, which makes her not only see the glass as half empty, but cracked and broken as well. She has told me she should be happy with our M, but looking around the house, she only feels hopeless and trapped. I think the depression has something to do with her feelings of hopelessness about our M, but she doesn't see the connection.
I got bombed with the ILYBINILWY speech after my W started talking with a man on FB she met through one of the online games there. After two months of talking to him, she was convinced that he was her soulmate, since she had "In Love" feelings about him that she didn't have for me anymore.
I hate to be the one to ask, but are you sure there isn't an OW?
