Any recommendations for shows like Marriagetoxin?

My wife recently has gotten into various animes and we like to watch the occasional show together. Some things we've watched (and both enjoyed are):

-Princess Jellyfish

-May i ask for one final thing?

-Samurai Champloo

And most recently, Marriagetoxin. Something about the overtop silliness of Marriagetoxin mixed with "romance" really worked well for my wife and I. I found myself laughing a lot throughout the show (and the animation/fight scenes were pretty top notch). So I guess we are looking for a show with some good romance elements but either has a lot of laugh out loud humor or some damn good action.