It’s not friendship if it’s danger. It’s bullshit, manipulation, toxic, whatever.

Problematic relationships should be identified as such and swiftly abandoned.

Not to sound like an after school special, but if a “friend” encourages you to do something harmful then they’re not your friend. (Making fun of others, physically fighting, consuming more substances than you’re comfortable with, generally breaking the law) But especially when people are younger they might be eager to have a friend, and feel pressured to go along with what another person suggests.

One of those posts where I go, “OP are you okay?”

Co-dependence

I think any can be really.

A friend gives us validation, which could push us to do things we don’t want in some situations.

We can also be betrayed by a friend, and our outlook on life/perspectives shift into darker territory, particularly if you are isolated and stuff…

Someone you consider to be a friend may also not have your best interests at heart, or may have a completely wrong impression of you, and may not protect you from danger when you need it most.

Despite those, IMO friends are kind of essential from a mental health perspective - we’re social beings, isolation can bring out the worst in us. Whenever you come across someone that shares your values, keep them close 👍