So again it’s another sitch where girl gets to go on dating apps and sleep around and then comeback home with zero consequences.
Mako's W indicated she was done and wanted a divorce--THEN bought lacy underwear and went onto Bumble. She was actively pushing the D along. She ended a relationship that wasn't working. The consequences, if both choose to rekindle the marriage, is they now have hurts and trust to repair beyond the original work.
When my ex and I reconciled, she had a hard time with me sleeping with another, and I had a hard time trusting she wouldn't suddenly quit. We had to repair those beyond the original (ultimately unsolved) issues.
LH, clearly she's not all-in. I suspect if he pushed her, she'd run away, don't you?
I also agree pretending he's already piecing or in a committed relationship would be folly.