I am his mistress. How strong can I be

Honey, I do not know what type of men you have been around your whole life, but most men do not NEED a woman on the side, they want one. And for the ones who find themselves lucky enough to meet a stupid easy ** like you get to have one! I personally hate females like you cause you can't keep your hands off a taken man, but I hate the **-for-brains husbands that do this to their wife and children. So, on that note, you cannot control him (obviously, or he would be with you only, right?) but you can control yourself, so stop contributing to the downfall of society, and quit being a **. . .find your own man.

I am curious why you would settle for being the other woman? I am suspicious of men (I am a man) particularly that have mistresses who tell things to the other woman. He is lying to her so he likely is lying to you.