It will be difficult if it is possible. The likelihood of repairing the relationship will be up you the two of you but yes, if the relationship is both of your number one priority then it can be fixed.

When my wife and I first got together she worried aloud that she was too broken for our relationship to work. I told her then that all I needed from her was her best, that her best would be enough; I promised her the same. One's best is all someone can give so it has to be enough. I realize that your partner has problems with money management and apparently with honesty - was this her best?

My wife and I have both grown throughout our relationship. Our best has changed and improved. Is your partner willing to make changes or just try the same solution? Perhaps she is willing to hand over the finances to you? She has violated your trust and her responsibilities. Perhaps she deserves another chance, but you deserve her willingness to feel safe and she can't expect the same trust she once received from you until she earns it back.

I think I would ask my wife to allow me control over the finances and if she refused, if she isn't willing to trust me with that responsibility, then trust in our relationship would appear to be a one way street, and that would be unacceptable.