C.B.
Hi Kate,
I'm sorry for what you're going thro. It must be terribly lonely. I've never been through it so I have no first-hand advice, but it seems to me that if it were me and my husband I would be trying to reconnect and the way I would go about it is through sex. One night when hubby closes himself up in his room to work, I would put on something sexy and make a sexy entrance and see if I can't get his mind away from his work. If it works and you have sex, then I would use that bit of time after sex when everyone is feeling warm and fuzzy to very gently open up a conversation letting him know how lonely you are and trying to come up with a plan together for trying to reconnect. I know you say that you have some resentment already and that will only grow as time goes on, so don't wait too long. Even if you don't necessarily feel sexy and loving toward hubby right now, fake it until you make it, as they say.
Good luck!