Are you sure your H has shown true remorse for these two affairs?

My worry right now is that he's just playing a game with you here becuase you have set a presedent of forgiving him.

If he cheats and you take him back... twice, then HE argues with you about how to participate safely in a marriage I really have a worry about his long term intentions and maturity level.

Glass' gauge of the viability of the marriage after infidelity is the amount of remorse and willingness to repair the damage the WS shows...

Your H has not cheated once but twice and instead of repairing the damage he's ARGUING with you that YOU don't know what YOU are talking about?

Very worrisome...