Trust functions as a two-person dynamic. You are suggesting here that your wife accuses you of infidelity and that you have done nothing. Granted. But what I want to do know is what YOU mgiht be DOING to AGGRAVATE her anxiety over this?
What I am going to suggest is that you take the full disclosure approach reccomended by most FT's in the wake of an affair.
I sense some defensiveness in your post here, so I am thinking when our spouse accuses you of infidelity you defend yourself. Rather than just opening your arms and life up to her for inspection.
Have you taken a good look at your behaviour? Is there NOTHING you are doing that might make her feel uneasy?
If you want to change someone, MWD says you first must change yourself.