After you get married you will be very happy for the first few years usually but
after that things start to become routine and your life become a big chore and it also happens that your husband might not love you anymore as he used to before! That is because he fell into a big routine about building a career and earning money to run the family well and everything else that you also start to look like a chore to him. He might start feeling that loving you is just another chore that he has to do daily.
Also you must consider the possibility that you both might not be spending enough time these days together and your husband probably does not have enough time to remember all those stuff as he is busy with his own life so much. So you must keep in mind all these things that have led to this sort of behavior from your husband recently and try to take one at a time coolly and then solve them one at a time.
So How Do I Get Him Back?
First thing you should do is observe him a few days continuously and be nice to him and behave normally. You should also try to observe what his emotional state is when you're being nice to him, how does he react to you, and even if he is a bit serious you have to keep the environment around you cool and try to be funny as much as possible so that there is a mood boost.
While doing all these things one thing you have to bear in mind is confidence, yes confidence alone get you home with these type of situations, and more over your husband can feel it, if you are in a depressed state it can depress more so you should not let that happen. Always try to stay confident. Then you have to grab every opportunity and show your love wherever possible, you have to start behaving like you used to behave before, you have to do this because he fell in love with you previously because you behaved different that time, now just remember the old times and behave like before and you can get your husband back very quickly.