I agree 150% that you and your hubby should get away, just the 2 of you. Lonnie and I have always made a point of doing just that, even if it was just overnight in a town a few minutes away, it is time that we can spend together and it's one of the best things that we've done for our marriage. Of course, now our kids don't live at home, but we still take day trips and weekend trips together (other than vacations)!
As for the northeast, I don't know, I've not really been since I was a kid. I do love DC and Philly and NY, I went to NYC a few years ago and it's just great, you can't beat it! I guess it all depends on what you are looking for in your vacation...slow, romantic; fast-paced, lots of site-seeing, romantic or what...what do you all want to do?