But it's also possible they are perfectly normal human beings who just happen to be the wrong person to talk to about that particular problem.
Saying "you should talk to someone" is like saying "you should take some medicine." So, what medicine? Because it kind of matters. You don't want to treat insomnia with a high dose of laxatives and uppers. You don't want to treat a floppy boner with that burning muscle relaxant gel that makes it feel like your skin is being devoured by fire ants.
Unless you're into that sort of thing.
If you don't pick someone who knows about your situation, you may as well be rambling about thermodynamics to your cat. When you're having money problems, asking for advice from your friend who's on the verge of eviction could result in an extended, "Oh screeewwww yooooouuu ..." At the same time you wouldn't ask the rich, silver-spoon friend who thinks you can buy a house just by cutting back on coffee.
Ideally, you'd find a friend who has had money problems and learned how to fix them.
If you don't have friends who have been through your exact situation, you can usually find some who have at least been through a similar one. "Well, my wife never cheated on me, but we did have a problem a few years back where she was having nostalgic feelings for an old boyfriend. Here's how we got through that." Or even, "I was never addicted to crack, but I did quit smoking once, and it was super hard, and here's what I learned."
"QUITTING SMOKING FUCKING SUCKS!"