Unfortunately, a fast metabolism won’t last your entire life. Enjoy it while you can!
Source: I know, I’m finally putting on unwanted weight after decades of being skinny while eating/drinking whatever I wanted when I wanted and not necessarily exercising much, to the (understandable) envy of my wife. I get it, putting on weight easily sucks.
Oh i am very careful about what i eat, minimal sweet and junk food, mostly trying to go for vegies and fruits and some meats. No chips no fried things, you know anything that can make my system lag or work badly i dont take it. But i think you are right. Im 36 now. My wife hates me too.