this is how i feel.. during the dating stage, you do not see each other as often as the married stage.. the desire for each other grows, and resulted in more sex.. in fact, it is not only the sex that changes, the love factor too becomes dull.. so you cannot expect the same lifestyle as before, you need to adjust your demands and desires accordingly..
you can't change the fact that you will see each other everyday because you are now married.. so you might want to think about how to hook some desire out of him instead.. for example, your life is too dull.. work work work work work, stay home stay home.. 7 days a week, 2 activities only.. try arranging some activities on alternate weekends, and by weekends i mean Friday afterwork onwards until Sunday night.. chilling, clubbing, staycation at local hotels, road trips, 3D2N holiday, go to the beach, and whatever else you can think of.. important thing is to relax his mind.. the best is if you can go somewhere where there are lots of hot babes.. men likes to look at hot babes, ladies like to look at hunk.. build up the desire and then sex comes naturally..
my personal suggestion would be a staycation.. or maybe check into a budget hotel after clubbing/chilling till late night.. in my mind, checking into hotel always equate to sex, especially budget hotels like 81.. dunno why..
sometimes it helps when people are having sex in other rooms and you can hear them.. wild night awaits!
anyhow, these are told in my views and some of my experiences.. not sure if they help but i certainly hope so.. take reference from more bro and sis, hopefully you are able to sort out your life soon.. cheers!