My Wife Is Driving Me Crazy

We are a newlywed couple and our sex life has not been great. I have tried almost everything to make her cum but I am not able to. My wife is so beautiful that simply the feeling of being inside her makes me cum immediately. Perhaps I was too focused on my pleasure that I never noticed her dissatisfaction. She had grown more and more frustrated ever since we had sex for the first time. But now there have been a few developments that I'm not sure I quite like.

She recently met a man at her workplace who seems rather too close to her. Their "work calls" seem to have gotten longer and longer and often when they hang up, I would find her pleasuring herself. I have no doubt that she has fallen for him.

I tried to use this to my advantage. My plan was to make her aroused enough through him so I could finish the job. So I allowed her to talk with him even more. And then I would pounce at her and take her. She was surprised by this and seemed to enjoy it from the sounds she made when I fucked her. But those sounds made me climax too early yet again. The look of disappointment on her face was even worse now.

She remained grumpy for the majority of the time she was at home or interacting with me. The number of times we had sex in a week drastically decreased while her interaction with her coworker seemed to have gotten more and more frequent.

She's introduced me to him a few times. And every time, it seemed like he was her husband by how she would stand closer to him holding his arms. Her demeanor would be completely different when she was with him. She would use any and every opportunity to touch him and her smiles were the brightest when they were for him.

Yesterday, we had invited a few of her colleagues to our backyard pool party which was her idea. Of course, her lover would also be there. After setting everything up, we lay near the pool as we waited for them to arrive. She had worn her sexiest bikini. I tried to cop some feel and make out with her before they arrived but she kept angrily swatting me away.

A few people arrived and my hope of a quicky had gone down the drain. She was still laying near the pool when I heard his voice. I saw her remove her bra as soon as she heard him too. He walked into the view of my wife topless for him specially. He sat right next to her as they jumped straight into flirting again.

I didn't feel any anger when he touched her breasts in front of everyone or when she allowed it to happen. Or when she hugged him with her naked body. Instead, I was turned on. Her other coworkers looked at me nervously though. I haven't been able to pleasure her and if I wanted to see her cum, I realized that it could only be with him.

So now, I am eager to let him fuck her. I will allow it. But the only thing I am afraid of is that she may leave me. What should I do?