@emmasmum2013 no, she doesn't need calling out, and she doesn't owe OP any respect unless they knew each other prior to her relationship with OP's husband.
It would be lovely to think that we all acknowledge a sisterhood and therefore don't touch other women's spouses. Teh reality in this case is that the OW clearly didn't feel either her own marriage or OP's was an impediment to what they did. She doesn't need calling out: she knows what she has done and will have to deal with her own conscience.
It's so common to blame the OW, as if all these straying husbands would never have done so without some vile temptress luring them into bed, but it's always within the husband's gift to choose to remain faithful and work through any issues in his marriage before fucking anothet woman. Just. Say. No.
Maybe in cases where both parties to the marriage try to work through the infidelity and stay together, it becomes convenient to blame the OW to remove some of the guilt from the equation and allow them to move forward, but you'd have to be daft to blame it all on one external party, or think that trying to hold them to account is in any way reasonable or productive.
It's far more likely to make things even more unpleasant as OP tries to negotiate her separation and divorce, and if there is one thing she needs right now, it's her self-esteem intact, knowing she kept the moral high ground and didn't stoop to their level.