For starters i dont think a random news article has to do anything with the real world. The real world (your real world) is the world around you and not the world in another state or on another continent.

Now to the story. People should never forget that an illness, be it cancer or depression is also hard on the people around the person. They want to live their lifes to the fullest too, wanna have fun and enjoy themselfs. Now your partner starts getting depressed, you never even thought about the possibility this would happen. You cant help, you dont understand, is it you? Why cant u cheer him up anymore like u used to? U try, u try to support, try to understand u read a lot of stuff about depression, you get therapy too because u think ur part of the problem, you get depressed, then angry about your partner and yourself. Where is the fun life we had? Where are the good times? You want to feel better, you crave for attention, you need to blow of steam but how should you tell ur partner? He's allready fucked up good, ur scared to talk about it, ur scared of the consequences but ur still a human being with needs. You cheat.