Is it normal for a 56 year old american woman to love a 23 indian man?

I met my young Indian man in a forum. At first I though he must be crazy to feed me so many lines and i told him so. Very quickly our relationship turned to an intellectual one and we spent hours a day talking about the world. He was so intelligent, humble and polite that as I looked at the picture he posted I knew that the picture did not belong to him. A man in any society that had the intelligence and attitude that he had would not look like he just stepped out of a rock video. I questioned and he continually claimed it to be him, however I imagined another person when I spoke to him. I pictured a man that was very old with a big ugly belly and no teeth. I felt that this way if ever I was really able to see him face to face, it would not matter to me. I would know that truly had fallen for him and not what I hoped him to be. Eventually we met on Skype, and he was really this 23 year old man. No he was not the same young man, but as I imagined he was much more conservative. He is now my very best friend. I am back in college and he is studying for an IPS exam and is attending coaching. He is the most loving and caring man I have ever met. He is polite and always thinking of the time we are together next. His family knows of me and knows of our feelings for one another. He has assured me that it does not matter he will never leave me. That even after death he will look for me and that there will never be another. I have tried to leave him and he comes to be always and begs me not to leave him. I will add that I am very young and vibrant. My hair is long and flowing, I have very little evidence in my face that I am out of my 30's and I am quite healthy. I have tried to talk to him about whether he thinks he is making the right decision, yet he refuses to budge. He literally get tears in his eyes when I press the issue. Before he left the city to study, he continually fought with his parents that he would not give me up. We would be talking on Skype and at times the fights were tremendous, but he held his own against them. He swears he will never ever leave me and I believe him, but I have just never heard of anything like this before anywhere. Is it possible for us to truly find happiness? I often feel I am being unfair to him for he will not have his own children until I am dead. He swears to me with tears that he will never love another and that he has never loved another. He gets extremely angry if I mistrusts his affection. He says that it hurts his feelings that he is so dedicated to me and yet I still question about whether what we are doing is right. He has asked me to come to him this next year.. possibly as soon as March. I am not rich, but I do have a monthly income that will allow me to live very comfortably in India. So tell me, is it normal for a 56 year old woman to love so deeply a 23 year old man? And what's more important is is possible for a 23 year old man to love a 56 year old woman?