This is my first time asking a question. It’ll be a long post, but thank you for reading.

I’m a female member who has been seeing my papa (a male supporter) for three years. He even rents an apartment for me. He drops by whenever he has free time, and we spend about half of each month together. From the time he gives me, my allowance, and the things he says, I really do feel loved. However, I recently found out that he has been meeting another club woman he had approached before me once a month. They were sending each other their schedules on LINE, and it was obvious that they both wanted to see each other. When I brought it up, he kept insisting, “There’s no way I’d cheat when you’re this important to me!” He really hates being doubted—which is understandable, I suppose. At the same time, he says he wouldn’t forgive me if I saw someone else. I know it’s probably impossible to get a man who’s unfaithful by nature to stop seeing other women. Still, I told him, at the very least, “It hurts that I can’t help doubting you.” Then he just went around in circles, saying, “There’s no reason to doubt me. I’ve treated you this well and we’ve been together for so long. Besides, I’m getting older—I’m not interested in other women anymore.” So my question is: Even if he has a beloved girlfriend—he introduces me at all kinds of bars—could he still be meeting another woman once a month simply for sexual gratification? Or is he dissatisfied with me in some way? I’ve asked him to tell me if he is, but he says, “I have no complaints about you.” I’m at a complete loss and desperately need advice. Sorry for the long post, and thank you in advance.