@baseballchic,
men are like kids, you can't force your kid to behave in a specific way unless you let them know there's a reward for doing so (more time watching TV, a new Wii CD, going out, etc...) and disciplinary action for not doing so (less time watching TV, ....). Sex is our main drive, if we're horny and we don't have it we might most probably kill ourselves (and would do anything to get it)...
Tell your husband I want to have sex with you, but let's talk first. tell him I won't have sex with you unless we talk and I get satisfied by the conversation, tell him you aren't feeling sexy anymore and you're too depressed to have sex, going out to a romantic dinner would make you feel the way you used to feel prior to marriage, would make you feel wanted, loved and sexy. I mean make him realize there would be consequences to his lack of communication and be a little bit firm about it and that there will be a reward (the usual treat with a little extra, and let him know what that little extra is) for his continuous effort.