It can be seen that both parties have remarried.
We used to be husband and wife. As the saying goes, a husband and wife are blessed every day. It is normal to have feelings and keep in touch.
They still have feelings for each other. As for why they separated, it's just that they have different personalities and are suitable for being friends.
They are all very open-minded and have remarried. The chance of any dramatic story happening is relatively small.
As long as you maintain your relationship and pay more attention to your wife, there won't be any big problems.
Communicate with her and ask her not to have frequent contact with her wealthy husband. They are already married and should put family first. Talk to her more about your thoughts and let her get closer to you.