I'm out of town on business and just got a chance to check up on my latest post. I just wanted to let everyone know that I truly appreciate your support and concern - it helps more that you could imagine (well, I suppose maybe some of you could imagine). Your replies have convinced me that I should definitely take a break, and I now feel a lot better about doing so.
AchingMan, I know exactly what you mean when you say that you miss your wife's love more when she's right next to you than when you're away from her. The same thing happens to me - I travel quite a bit, but I often feel the lonliest when I'm home and there's still no physical contact with my wife. At least when I'm away from home I have no hope of anything physical happening.
Jen, your Easter weekend fight with your husband sounds exactly like my weekend in California. I'm often amazed at the similarities between my situation and those of so many other people.