I suddenly didn't answer my phone or return my text messages.

If the cancer girl doesn't answer your phone or return your text messages, it may mean that she is not interested in you, or she is busy, or she doesn't know how to reply to your message. The specific situation may vary from person to person.

However, whatever the reason, here are some suggestions to help you:

1. Give her some time and space: Sometimes people just need a little time to deal with their affairs, or just want some alone time. Respect her decision and don't pursue or chase her too much.

2. Send friendly messages: Whether she replies or not, you can try to send some friendly and understanding messages. For example, you can say, "I know you may be busy." If you have time, I'd like to talk to you. Please feel free to tell me what you need. "

3. Express your thoughts and feelings clearly: If you have something important to tell her, express your thoughts and feelings as directly and respectfully as possible.

4. Contact more: If you have common friends, you can learn about her recent situation through them, or invite her to participate in some activities with you.

Remember, everyone and every situation is unique. Here are just some general suggestions. The most important thing is to respect her decision and understand that even if you don't understand her behavior, it doesn't mean that she intentionally hurts you or doesn't give you due respect.