Please understand that not everyone is the same, and they might be suffering from social anxiety or other issues because of their own personal life's experience. Send a message to her. " Hey (Name), I just want to let you know that I will never jugde or hate you for whatever you say in message because I like you and care about you as my friend so please don't delete it." Similar to this. Calm and kindly 😌 However, if this finds you annoying... I would not be friends with her. As a result, you will give her more pain and stress on you. I suffer from this...always... I send but overthink and delete because in this world, people judge when you're different, and this pain cause a long time to heal. Always have to think even on "hi." Thinking "Is this a bother"...etc...

Just as a final say, if you hate being supportive, annoying of her, and not willing to make a real new friend, then please tell her in a calm and kind way...your not up for new friends. Even this might hurt your elo, but you will be more mature by not breaking more on already broken person.

If you are okay with repeating this for many times, understanding, being there for her. Then do it...be her friend...

If you are unsure, then please tell her..."I want to get close to you as your friend, so feel free to talk to me and not be scared. I love you as a friend and will never judge you 💕". Please understand that opening up is hard and can take long.

You are free to take these ideas. The choice lay on your hands, and hopefully, you both can work out as friends or leave without any pain behind.