Possibly controversial, and there are of course some people who are incredibly lovely. Of course people can be very kind and genuine yet have boundaries, but what I want to say is that many people display elements of shitty behaviour.
Many friendships are just of convenience, they're local or they work with you. Leave that job/move an hour away you'll not hear from them again, because they can't be arsed.
People love to talk about others, gossip, judge, make fun of them.
Some friends if they think they've 'made it' in life i.e. marriage, kids, promotion and big house, well they think they can't relate to you anymore and they're above you now.
Many think nothing of leaving their partner for someone else.
I'm just a little fed up.