Welcome ann in Texas (and faince!). Firstly, the way you and your fiance have been treated is disgraceful. What was the REASON for him being disfellowshipped? As magoo said, they haven't taken this decision by their OWN rules (2 witness, admission /proof of guilt etc). So he has been falsely accused, and I dare say his reputation harmed by their decision.
Has the Society being informed?