You were in the right place at the right time. You were her fantasy, her escape, from her marriage. You asked if you were losing her, buddy, you never had her.

You have no right to date a married woman. You have no right to inflict pain upon those children. You have self-esteem issues that you need to deal with. Do you really feel like you can't do better than a married woman?

This path you have chosen will only lead to destruction for all. If I were her husband and found out about you I would hunt you down. I hope you reconsider what you are doing. Love and lust are two totally different things.