Member Rara Avis
You can't! A relationship should be built on trust. If she can't trust you, it would only cause more problems, say if you were to get married or something. So let it go for a bit and see what happens. If there's not trust on both parts, I'd say start looking elsewhere. Unless there is GOOD reason for that mistrust. Then it has to be earned back, and that takes a LONG time!