Got married recently but still obsessed over someone else sexually

I am (M30) studying PhD in the US. Recently came to Bangladesh and got married to a really sweet and caring girl and then left BD only after two weeks of our marriage. Before getting married, I had a short relationship with her. She showered me with love and care. As a result, I fell in love with her shortly and decided that she’s the one.

Now, I used to have a crush on another girl. Later I found out that the feeling was mutual. She liked me as well. But I couldn’t feel any emotional connection with her after talking to her for a while. I couldn’t connect with her in terms of intellect, mutual interests, sense of humor etc. She didn’t seem like a “সংসারী" girl as well. So, I stopped it before getting serious. But she remained a sexual fantasy to me. Nobody could turn me on except her. She seems like the sexiest girl I have ever seen. I texted her from time to time. And she always indicated that she was still interested. However, I decided that getting married only for lust is not a good idea. So, I never get into something serious with her.

Then a few months earlier, I met with my current wife. Initially I felt a connection both emotionally and sexually. I thought I was finally moved on from my sexual fantasy over the other girl. So decided to get married. But now I am starting to regret. The girl I have married is beautiful, sweet, caring, and she puts efforts sexually as well. I don’t want to hurt her in any way. I am trying to give my best efforts to please her in every way. But day by day I am losing interest in her sexually and my old obsession is coming back.

I hope I could get over my obsession over this one particular girl and give all the love to my wife that she deserves. I hope everything would be okay once my wife gets her visa and starts living with me. Till then I hope I don’t do anything stupid.