1. I think I am in love with with my wife's best friend. 2. I love my wife too. 3. I do not wanna loose either. 4. The girl sees me as a brother. May be truly or may be not I do not know. She had one day suddenly kissed me on my cheek in front of my wife. She often hugs me. 5. I am attracted to her in both ways. It is just not sexual. 6. My wife and she learn violin from same teacher. That teacher is a prospective groom for her. 7. I am feeling guilty and this eating me up. 8. I have very good friendship with her. 9. She often visits my house and stays with us. 10. My wife and she has lot of similarity. 11. Recently I have started behaving badly with her. I mean not talking to her. Avoiding her. This is making her confused and my wife too. What should I do? It is very complex situation. I had told her that I don't see her as a sister. Please suggest what should I do?