Fallen for my friend

I’ve been in a relationship for around 18months with a wonderful woman who treats me well. I love her and know that she is great for me. We have had our ups and downs over the last few months but we have been getting through. However, last week my friends and I went out to celebrate ending exams, as the night progressed I found myself spending most of my time with one girl in particular. I first met her 4 years ago, when I was 17 and have always cared about her. Over the last 6 months our relationship has been somewhat flirtatious and we ended up kissing during the night out and I stayed at her house. Nothing happened other than some more kissing.

I met up with her this week in order to discuss what we were going to do about it. I told her that I wanted to be with her. However, much to my surprise, she told me that she wasnt sure. She claims that she doesn’t want to risk losing me as a friend and that she is worried about the fact that I am actually still in a relationship.

I have two questions; firstly is there anything I can do to show her that I am worth the risk and secondly, what should I do about my girlfriend, who I do love… its just… not what I want… I dont think…