Take some time apart and If he goes back to her it’s better for the child having both birth parents in the same house most of the time and probably better for your mental well being, more free time to date or work, and save more cash in some cases. If he comes back then you can live without a dark cloud looming overhead. Raincheck the relationship. I don’t see a downside other than maybe sex, some random emotions, and missing his company. But if you are the kind of person who would be a good husband and son-in-law, then just spend lots of time with your potential father-in-law.
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