Oz,

You only ignore it if you’re not going to do anything about it. If you blow it up and she doesn’t stop will there be consequences? If so what are they?

What are your values? Are you ok sharing your W physically or emotionally with another man?

There are many red flags in your sitch and I think your gut is telling you something. You can’t re-attract her if she is giving herself emotionally or physically to another man.