You need to know for sure if there is another woman. I believe it is a whole different ball game at the beginning if there is.
It sre sounds like it. You need to tell us more info if you want help. Your story is sketchy. What are living arangements, how long together, kids, ome life ,etc etc.
If this OW does exist and is married , you need to consider outing her etc. But we jump the gun. give us more info, to work on .
