Even the last one will hold her back. If the formerly wayward spouse doesn't commit to full NC and transparency, and do her part to AS BEST SHE CAN not intentionally ruminate about her former affair partner (say, by stalking him on Facebook, or keeping old gifts he gave her, or re-reading old text messages and emails, etc.) . . . it's going to take her a lot, LOT longer to become open again emotionally to her husband, if ever.
I don't know which of these, if any, she might be doing, Rzr. But at a minimum she seems to be holding onto him in her mind and heart.