Good morning, so I am glad you finally got everything out in the open. It does appear there are some external factors that have come in to play in your relationship and I do understand and respect that Cindy feels the need to take time to find herself. Obviously, you can't give to another person if you don't feel you know yourself well enough.
However, I would question what she thinks is going to change in 1 month's time and why she feels like she can't carve out and establish herself while you are still in a committed relationship. Part of the balance and beauty of relationships is maintaining some form of an individual identity while also being part of a couple. Ironically, it can be the love and nurture of someone who allows you to learn about yourself and it sounds like you have supported her through so much already. Also, if she still wants to hang out and be friends, what exactly will change besides a lack of intimacy? Will that single factor somehow allow her inner growth? Will she be intimate with other people while on this break? Would that be okay with you if she was?
Overall, I can't say I have the most positive reaction to her asking you to wait for her for a month. While it is nice she still wants to hang out with you, it sounds like she really may be trying to distance herself from commitment and even if legitimate, the "find myself" is an excuse. This may be her way of getting you closer to the "friend zone" as she is scared to lose you all together but senses that she may not want to be committed to you any longer.
The choice is 100% up to you now. If you really love her, I can't see that waiting 1 month to see if she comes back is detrimental, but her asking is a warning flag and you may end up getting really hurt in the end. As you know, I am no mind reader but I am just worried about your continued full investment here when signs are pointing to less than that from her.
How old is this woman?