Something is definitely not right when you mentioned that she 'complained' you don't give her enough trust. Have you been acting in a certain way that puts her off? And what exactly is she complaining about you not trusting her?
If your answer to the above is positive on yourself, then great. No worries (no cheating, you better be frank to yourself). If anyone is to worry, that would be her.
But if you do admit that you have a problem that she's complaining of, then perhaps you had better do some soul searching and find the problem - and solve it.
Good luck.