Dear Pann,
It's just few years since I'm married,I think I'm not in a great position to share much. However,touch wood, so far we being on the right track, I think, I'm eligible to share few thoughts.
The first secret I learned is, "Thou Shalt Tell 5 Lies A Day to thy wife"!!..
தினமும் ஐந்து பச்சை பொய் !! .Like a moslem who meticulously look towards the West each day and utter 5 namaz, I do look to her eyes/SMS/mail/Call to stage whisper that 5 lies/day quota, ie, 'Sweet Heart,You Look Beautiful'. Just like a scratched gramaphone record.
Above all, making a call to Mother-In-Law,taking her to a movie (which I dont like),strum a song for her,adventurously eating out in a dark remote highway Dhaba after a long drive with no purpose,let her hold the T.V Remote,buying her a Pug (I hate pets),make her a bed coffee (once in a while) etc are all some secrets for growing old with her.
If one wanna make a wife fall in unconditional love, day after day, try doing a foot massage to her, and a bit of R&D on pedicure.
Btw, this song by Adam Sandler, is indeed an inspirational one to me.
I wanna make you smile whenever you're sad
Carry you around when your arthritis is bad
All I wanna do is grow old with you
I'll get your medicine when your tummy aches
Build you a fire if the furnace breaks
Oh it could be so nice, growing old with you
I'll miss you
Kiss you
Give you my coat when you are cold
Need you
Feed you
Even let ya hold the remote control
So let me do the dishes in our kitchen sink
Put you to bed if you've had too much to drink
I could be the man who grows old with you
I wanna grow old with you
Having said that, Lao Tzu tells us to explore the other side too, ie " Marriage is three parts love and seven parts forgiveness of sins.”