Hey, its okay if you enjoy being on your own.. and not having a friendship group doesn't mean you are a loser.

If you are honestly happy with things as they are then I can see no problem.

However if you feel like you want more friendships and that you aren't entirely happy on your own but avoid social situations because of fear/anxiety that's when it becomes unhealthy.

Don't let society dictate what you need to be. Do what makes you happy. If that means not dealing with other people then so be it.