Just a thought here.
My husband and I started out in a long-distance relationship. We'd literally talk for hours at a time, and never once notice the passage of such. But then, our love was still new, and the harmony we shared wasn't distracted by physical closeness or attraction.
We've been together almost five years now. I've watched him backslide, go into depression, then get raised back where he needs to be in Christ. It's certainly been a roller-coaster ride of emotions.
A few months ago, he went through a personal crisis where he removed himself from the home. He didn't do it to hurt me, but to get away from the distraction which I presented to him. He was despairing, and felt that my presence around him would remind him of his own personal failures. I persisted, communicating with him mostly through text messaging. He literally did not want to hear my voice
Once he returned, we discovered that we speak best on...IM. Right now, our best arguments are held on MSN Messenger.
Did I neglect to mention that his computer is in our bedroom, and my computer is in the living room? The most violence our kids hear nowadays is loud typing.
Point being, stay strong, sister. Communicate that you care. Let him know that your love is still there, because even though he's absent, you can bet he's evaluating the relationship. Let him know you're willing to continue working on the relationship. Pray that God softens his heart, and he sees with startling vision the love and the lifetime commitment which awaits him at home.
Every marriage goes through storms of some sort, and that includes Christian marriages. There's no clear answer to your situation, but you can bet that it's in God's hands, nonetheless.
Mara