I suggest marriage counseling: because this will not only cover your problems with intimacy, but your whole marriage in general. Please consider this before you 'give up'. Blessings - Blu
There is a good book about coping with a "Low Sex or No Sex Marriage" (that phrase would be in the title, if you went on Amazon you could find it by that). I don't know if it would work if he is not interested, though. In other words, it talks about rekindling intimacy, communication, and all the stuff you would expect (sex is not just ripping off your clothes and going at it, after the first heady months). I would also see a counselor, as a couple, as Blu suggests.