I recently got married about three months ago and I’m starting to think maybe I made a big mistake. 
We argue every week, we aren’t on the same page anymore like we used to be. 
I constantly disappoint her. 
It’s difficult to understand that I’ve made no progress to be a great spouse when she thanks me often for being one but then once we fight, divorce is brought up and she suggests we should. 
I found out she isn’t sexually attracted to me anymore because of all the arguments and that completely crushed me. I don’t know what to do. 
I love her so much, I just want to make her happy but it seems like no matter what I do. I always fail.