There are some common pattern that we can identify in both types of friendships. Shallow Friendships: A lack of communication. A lack of attention being payed to one another. Not being there when each individual needs social support.
Shallow people are defined as those individuals who are interested in surface-level things like gossip and drama, among many others. No matter how hard you try to have a deep conversation with them, you'll end up frustrating yourself in the process.
In superficial relationships, there are no shared interests and the partners or friends do not spend a lot of time with each other. So, if you're not going and spending time together, talking about interests, hobbies, or passions, then it could be a superficial relationship.
The perfect friendship
It's the most solid kind — and the rarest — but it's still possible. It's a friendship that goes beyond utility or pleasure. Instead, you truly appreciate the other person for who they are. There's also generosity here because you aren't trying to get anything out of it.
In general, having no friends is relatively normal. A February 2021 report found that 36% of Americans felt serious loneliness and a 2019 report showed that 1 in 5 people had no friends. If you have no friends, you are not alone. However, having no friends can lead to loneliness for some people.
INTJs and INTPs also have few friends. Again, they are introverted types who do not extend much effort in cultivating relationships.
A different way of categorizing friendship is by applying “The Three C's”. There are three basic types of people with whom you interact: Constituents, Comrades, and Confidants.
The four factors that are most effective in initial verbal contacts are confidence, creativity, caring and consideration — otherwise known as the Four Cs.
Though every bond evolves in its own way, I have come to believe that there are six forces that help form friendships and maintain them through the years: accumulation, attention, intention, ritual, imagination, and grace.
In short, a bad friend is someone who is stressful or exhausting to be around. They may be: Overly competitive with you. Likely to encourage bad behaviors. Unreliable.
Low maintenance friends are friends you don't have to talk to every single day but are there when you need them. They are people you don't spend so much time with yet when you do meet up and see each other, everything's the same, as though nothing's changed.
A relationship that isn't serious or isn't taken seriously by one or both partners is a superficial relationship. From the very name of such a type of relationship, the bonding or intimacy of such relationships is wholly on the surface level. Such relationships are almost entirely based on physical attractiveness.
They're never around in difficult times
So, being too busy, citing excuses, or flaking out on you every time you need help or support is one of the unmistakable signs your friend doesn't truly care about you.
Most people have at least one flaky friend. You know: the person who constantly agrees to plans—even initiates them! —and then (a) bails at the last second, (b) is astonishingly late to said plans, or (c) is simply a no-show when the time comes to actually meet up.
Introverts can also sometimes be considered loners. These are people who enjoy time alone, not necessarily because they don't like being around other people, but rather because they are more interested in their own inner thoughts and feelings. Spending quality time by themselves is how they are able to regain energy.
What Is a Loner Personality? Loners are people who actively try to stay as far away as possible from social interactions. They prefer solitude over the company of others and tend to enjoy being preoccupied with their thoughts. Loners usually don't mind sitting idly or waiting, so long as they are alone when doing it.
INTJ: One of The Rarest, Loneliest Personality Types [Introverts and Writing]