Girls claim not to return text messages.

Judging from your description, this girl has clearly told you that she doesn't want to fall in love and expressed her willingness to be friends with you. In this case, you choose to confess to her in the middle of the night. This sudden move may make her feel uneasy or troubled. In this case, she may choose not to reply to your message for the time being, so as to calmly think about your relationship.

Not returning messages does not mean that she has blacked out or deleted your contact information. Maybe it's just that she hasn't figured out how to deal with your confession yet. In this case, you can take the following measures to help you two deal with this problem:

1. Give her some space: give her some time and space to digest your confession and give her enough time to think about your relationship. Don't send her messages frequently, so as not to make her feel more troubled.

2. Express sincerity: At an appropriate time, you can express your sincerity to her again and tell her that you cherish your friendship and are willing to respect her decision. This will let her know that you are a sincere and mature person, thus increasing her goodwill towards you.

3. Be patient: It takes some patience to deal with this situation. Don't feel depressed or disappointed because she hasn't replied to your message for the time being. Give her enough time and space to think about your relationship and let her know that you are willing to wait for her reply.

Finally, no matter what her decision is, you should respect her choice and keep your friendship. If she decides to stay with you, congratulations; If she decides to remain friends, then she should also respect her decision and continue to maintain your friendship.