I went over all this with epiphany a year or two ago. Long story short:
Catholic teaching is that ignorance that marriage lasts until death does not invalidate a marriage, nor does infidelity either before or after marriage, nor does saying later that one "simulated consent", or that a person withheld information about themselves. Saying those things invalidate marriage is against Catholic teaching.
As far as the issue of contraception, that is a bit more complex, and I'd have to dig to find in what circuмstances that could make marriage invalid, but the Novus Ordo open-ended idea that "intending to use contraception" renders the marriage invalid is completely false.
Elwin, if you worked in one of these so-called tribunals and cooperated with handing out "annulments" on these fake grounds, you should probably discuss this with your priest, as this is very serious matter.
