BS here. The world will be full of triggers. The world will be a very dark place.
Politeness and kindness goes a long way during a painful time. Ignoring might be a trigger, even if you don't know what to say, for sometimes ignoring something during grief pushes buttons.
Losing a husband or wife to infidelity is akin to death of a primary player (person) in your life. A parent or sibing. There is a massive hole in your wife's life now, a ghost rambling around who haunts her. There's no reason to wake up in the morning but it keeps coming anyway.
Depression is there and wounds in the heart are like an open scab.
God, there is so much more, so much pain, the pain is so raw and deep. Seeing things with couples is like the world is mocking me.
I could go on and on but will end by saying it is a miserable existence, like hell on earth, where you ramble the earth instead of walking with your head held high. There is embarrassment, shame, disgusts, why? and so much more.
A person is a person, no matter how small. -Dr. Suess
Perserverance and spirit have done wonders in all ages.