Ahhh where to start?
I can certainly sympathize with you about the weight comments. I've gotten a lot of them from my wife. Like you, I am or was 6 ft. and at my peak was ounces away from 250 of blubber. It took a few years of slowly growing self-esteem and cutting out a lot of junk, oh, and two experiments at transitioning, that I was finally down to 145 lbs of flabby flesh.
Fast forward a few decades of diversions, distractions and denial, my weight slowly climbed up. Add in yet another life disaster, a relocation some 350 miles from my wife for a job that I hated but paid well, and plenty of comfort food and drink. Soon I was heading towards the 200 lb mark, an area I swore never to be in again. Worse was all I could think about was how even if I wanted to, I couldn't fit into any of my female clothes. Now THAT totally upset me. Time for some introspection....
As part of taking on the trans beast my weight also got shed. In that process, coupled with dropping the T-Nuke on my wife (I say nuke since she already knew about me being TG) she saw quite a few changes in me during my visits over the years I was away. All positive yet very concerned about my weight. It is a major struggle for me to maintain the 140-145 I want to be near, still lots of jiggly flesh. Now at 145-150 lots of jiggle plus a monster gut vs a big one. Don't say excersize. No time, no space. I am lucky I can get my daily 5-8 mile walk in which I badly need thanks to spending all day in a chair.
As far as your wife.... Well, you let the genie out of the bottle and there is no putting it back in. The restuffing you are trying may only be leaving her hanging to the feelings of the worse comming, you not sharing, you still being a liar, betrayer. As well as a few others that are totally ruining her life as she waits for the other shoe to drop. Her latent anger easily comes out with a few drinks. It may not all be really about you. As my wife puts it, it may be the "kick the dog" syndrome. You are the only one around and naturally on the recieving side of any pent up anger.
The only way my marriage has survived, so far, is lots of open honest communication. Which is not easy when you need to find that balance between needed info and TMI. Also plenty of tears and luck. Do keep in mind you spent a lifetime trying to understand, much less get a grip on, being TG. Your wife? A few hours so far? If you haven't sorted it out yet, how do you think she is fairing? In a vacuum?