Is the woman or man to blame?

I see a lot of posts on here of women asking advice on what to do in situations they've gotten themselves in with married men. My question to you ladies is, isn't it getting old just blaming the woman? I've seen women being torn apart over this. Obviously both parties are to blame but ultimately the person who is married just went against the vows they took to the woman they claimed to want to spend their life with. What are your thoughts on this? I'd love to hear different perspectives.