Hello from Madrid!
Everything is totally normal here, in spite of the war. All of the shops, hotels, restaurants, companies, etc. are continuing with "business as usual".
In fact, if you don't read the press nor turn on the TV or radio (I DO read the press!), it would be hard to know that there is a war starting up in Irak.
The only thing you might notice is that airplanes and hotels will probably not be 100% full, although during Easter week they will be close to full in Spain. Also, airlines are cutting down routes, in order to keep the planes full.
Enjoy your honeymoon. Spain is still a safe place to visit, even in these difficult times. Actually, coming from Asia, I'd be more worried about this Asian Flu going around. Any cases there? Only 2 cases in Spain so far.