What to do in this situation?

So I had an issue with my girlfriend. And the next day I apologized for my mistakes and wrote an cute letter for her to read. She didn't read fully because she said she was not in an good mood. I dont know if she forgived me yet or not. She didn't speak anything about forgiving me. She said she needs some days. So we stopped talking and now I really miss her but I dont know what to do or how to fix things up. This "space" from the relationship makes me feel distant.

Any advices? I would really be thankful for them.

What to do in this situation?
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