If you have them, still be a friend. Just know that if you intimidate them too much, they’ll stab you in the back. We all have them.
Help them to be more secure. Encourage them if you need to. They’ll need it. They’ll need more attention than you can give. They’ll zap you of all of your energy, and if you are going to be friends with them, they’ll continue to take.
Just keep this in mind if you’re going to be their friend.
What’s funny is that only my insecure friends will be asking themselves if they are one of them.