When a girl says she needs time after a break-up?

I have met a girl from an app. It was really fun date, lasted over 3 hours. In the beginning of the date she told me that she broke up with someone after 8 years of relationship, two months ago and I am her first date since then. It was her decision and she told me that she talked about it because she felt like she was doing something wrong but she hadn't.(because of the ex boyfriend). the date lasted 3 hours+ and it was really fun for both of us. two days later I tried to invite her to meet but she told me she didn't there yet. she told me she need more time to overcome and to feel comfortable with that, I suggested that we can take things easy but she prefer not to. I asked her if It's ok for me to try in the future to invite her again. she told me ofcourse it's ok and she said that if she will feel better she won't be shy to reach me. I don't like to give up but she told me she know that, but she said that she is sure that I understand her and give her a little time. I asked couple of times if she didn't like me? or is just matter of time because of the relationship? she told me it's really just a matter of time and she hope it will over. what do you think? for now I don't talk to her at all and I respect her wish. how long should I wait? should I have a chance? She told me that I really impressed her.

When a girl says she needs time after a break-up?
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