If you really feel like you cannot wear your wedding ring right now, why not just take it off and put it in a box or something? It sounds like it would be very hurtful to give it back. How would you feel if she gave you back the rings on her finger?
If you have been reading the posts on this BB then you should have got by now, it takes time and patience to fix whats wrong, and it won't be easy. I'm sure others will chime in here.